diff --git a/backend/models/initial_recorders.json b/backend/models/initial_recorders.json
index de70ae3..9717c8f 100644
--- a/backend/models/initial_recorders.json
+++ b/backend/models/initial_recorders.json
@@ -1,133 +1,95 @@
 { 
   "recorders": [
     {
-      "name": "CS 50.35 Fasansengarten-H\u00f6rsaal (Hs a.F.)",
-      "building": "50.35",
-      "room": "HS Fasanengarten",
-      "username": "admin",
-      "password": "lrhsafg+-",
-      "ip": "129.13.51.82",
-      "mac": "00:55:56:4d:68:fa",
-      "type": "VGADVI Recorder",
-      "additional_camera": false,
-      "firmware_version": "2.5.0f",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"006 / 8 L\", \"rsync_name\": \"LRHSAF\"}"
-    },
-    {
-      "name": "CS 30.21 Gerthsen-H\u00f6rsaal",
-      "building": "30.21",
-      "room": "Gerthsen",
-      "username": "admin",
-      "password": "lrgerthsen+-",
-      "ip": "129.13.51.83",
-      "mac": "00:55:56:69:91:a9",
-      "type": "VGADVI Recorder",
-      "additional_camera": false,
-      "firmware_version": "2.5.0f",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"003 / 3\", \"rsync_name\": \"LRGerthsen\"}"
-    },
-    {
-      "name": "CS 10.91 Grashof-H\u00f6rsaal",
+      "name": "CS 10.91 Grashof-Hoersaal",
       "building": "10.91",
       "room": "Grashof",
       "username": "admin",
-      "password": "lrgrashof+-",
-      "ip": "129.13.51.84",
-      "mac": "00:55:56:78:96:2f",
-      "type": "LectureRecorder X2",
-      "additional_camera": false,
-      "firmware_version": "3.12.0k",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"EDV 6 L\", \"rsync_name\": \"LRGrashof\"}"
+      "password": "smpgrashof",
+      "ip": "129.13.51.114",
+      "mac": "00:05:A6:1A:4E:4B",
+      "type": "SMP 351",
+      "additional_camera": true,
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"SMP 351 + LL\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
-      "name": "CS 50.24 H\u00f6rsaal-101",
-      "building": "50.24",
-      "room": "HS-101 (Informatik)",
-      "username": "admin",
-      "password": "lr-101+-",
-      "ip": "129.13.51.85",
-      "mac": "00:55:56:40:97:2d",
-      "type": "VGADVI Recorder",
-      "additional_camera": false,
-      "firmware_version": "2.5.0f",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"IT 3.3\", \"rsync_name\": \"LR101\"}"
-    },
-    {
-      "name": "CS 10.21 Carl-Benz-H\u00f6rsaal",
-      "building": "10.21",
-      "room": "Carl-Benz H\u00f6rsaal",
-      "username": "admin",
-      "password": "lrbenz+-",
-      "ip": "129.13.51.87",
-      "mac": "00:55:56:b3:01:9d",
-      "type": "LectureRecorder X2",
-      "additional_camera": false,
-      "firmware_version": "3.12.0k",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"\", \"rsync_name\": \"LRBenz\"}"
-    },
-    {
-      "name": "CS 10.21 Gottlieb-Daimler-H\u00f6rsaal",
-      "building": "10.21",
-      "room": "Gottlieb-Daimler H\u00f6rsaal",
-      "username": "admin",
-      "password": "lrdaimler+-",
-      "ip": "129.13.51.88",
-      "mac": "00:55:56:61:47:48",
-      "type": "DVIRecorderDL",
-      "additional_camera": false,
-      "firmware_version": "2.5.0f",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"\", \"rsync_name\": \"LRDaimler\"}"
-    },
-    {
-      "name": "CS 10.50 Bauingenieure, Kleiner H\u00f6rsaal",
-      "building": "10.50",
-      "room": "Kleiner H\u00f6rsaal Bauingenieure",
-      "username": "admin",
-      "password": "lrkleinerhs+-",
-      "ip": "129.13.51.89",
-      "mac": "00:55:56:bb:d7:86",
-      "type": "LectureRecorder",
-      "additional_camera": false,
-      "firmware_version": "2.5.0f",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"\", \"rsync_name\": \"LRkleinerHS\"}"
-    },
-    {
-      "name": "CS 30.41 Chemie-H\u00f6rsaal Nr.3",
+      "name": "CS 30.41 Chemie-Hoersaal Nr. 1",
       "building": "30.41",
-      "room": "Chemie \u2013 H\u00f6rsaal 3",
+      "room": "Chemie - Hörsaal 1",
       "username": "admin",
-      "password": "lrhs3+-",
-      "ip": "129.13.51.91",
-      "mac": "00:55:56:f1:7c:84",
-      "type": "LectureRecorder X2",
+      "password": "smphs1",
+      "ip": "129.13.51.118",
+      "mac": "00:05:A6:1C:07:27",
+      "type": "SMP 351",
       "additional_camera": false,
-      "firmware_version": "3.12.0k",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"\", \"rsync_name\": \"LRHS3\"}"
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"SMP 351 + LL\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
-      "name": "CS 10.91 Redtenbacher-H\u00f6rsaal",
-      "building": "10.91",
-      "room": "Redtenbacher H\u00f6rsaal",
+      "name": "CS 30.41 Chemie-Hoersaal Nr. 2",
+      "building": "30.41",
+      "room": "Chemie - Hörsaal 2",
       "username": "admin",
-      "password": "lrredtenbacher+-",
-      "ip": "129.13.51.79",
-      "mac": "00:55:56:75:29:19",
-      "type": "VGADVI Recorder",
+      "password": "smphs2",
+      "ip": "129.13.51.117",
+      "mac": "00:05:A6:1C:07:00",
+      "type": "SMP 351",
       "additional_camera": false,
-      "firmware_version": "2.5.0f",
-      "description": "{\"comment\": \"pyCA v2.1\", \"network_port\": \"\", \"rsync_name\": \"Redtenbacher_HS\"}"
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"SMP 351 + LL\", \"network_port\": \"\", \"rsync_name\": \"\"}"
+    },
+    {
+      "name": "CS 30.41 Rudolf-Criegee-Hoersaal",
+      "building": "30.41",
+      "room": "Rudolf-Criegee-Hörsaal (HS4)",
+      "username": "admin",
+      "password": "smphs4",
+      "ip": "129.13.51.116",
+      "mac": "00:05:A6:1C:06:CB",
+      "type": "SMP 351",
+      "additional_camera": true,
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"SMP 351 + LL\", \"network_port\": \"\", \"rsync_name\": \"\"}"
+    },
+    {
+      "name": "CS 30.41 Chemie-Hoersaal Nr. 3",
+      "building": "30.41",
+      "room": "Chemie-Hörsaal Nr. 3 (HS3)",
+      "username": "admin",
+      "password": "smphs3",
+      "ip": "129.13.51.115",
+      "mac": "00:05:A6:1C:07:0A",
+      "type": "SMP 351",
+      "additional_camera": true,
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"SMP 351 + LL\", \"network_port\": \"\", \"rsync_name\": \"\"}"
+    },
+
+    {
+      "name": "CS 10.91 Redtenbacher-Hoersaal",
+      "building": "10.91",
+      "room": "Redtenbacher-Hörsaal",
+      "username": "admin",
+      "password": "smpredtenbacher",
+      "ip": "129.13.51.113",
+      "mac": "00:05:A6:1C:06:F5",
+      "type": "SMP 351",
+      "additional_camera": true,
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"SMP 351 + LL\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 10.50 Bauingenieure Grosser Hoersaal",
       "building": "10.50",
-      "room": "Grosser H\u00f6rsaal Bauingenieure",
+      "room": "Grosser Hörsaal Bauingenieure",
       "username": "admin",
       "password": "smpgrosserhs",
       "ip": "129.13.51.101",
       "mac": "",
       "type": "SMP 351",
       "additional_camera": false,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"SMP 351 \\u2013SDI Eingang (Channel B) / ZML \\u2013 Axel\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
@@ -140,125 +102,177 @@
       "mac": "00-05-A6-11-E2-6D",
       "type": "SMP 351",
       "additional_camera": false,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"SMP 351 \", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 30.46 Chemie Neuer Hoersaal",
       "building": "30.46",
-      "room": "Chemie Neuer H\u00f6rsaal",
+      "room": "Chemie Neuer Hörsaal",
       "username": "admin",
       "password": "smpchemie",
       "ip": "129.13.51.103",
       "mac": "00-05-A6-12-CE-E0",
       "type": "SMP 351",
       "additional_camera": true,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"Dual Link License\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 30.10 Nachrichtentechnik-Hoersaal NTI",
       "building": "30.10",
-      "room": "Nachrichtentechnik-Hörsaal NTI",
+      "room": "Nachrichtentechnik-Hörsaal (NTI)",
       "username": "admin",
       "password": "smpnti",
       "ip": "129.13.51.104",
       "mac": "00-05-A6-12-6A-C9",
       "type": "SMP 351",
       "additional_camera": true,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"Dual Link License\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 40.50 EBI Hoersaal",
       "building": "40.50",
-      "room": "Engler Bunte H\u00f6rsaal RBI",
+      "room": "EBI Hörsaal",
       "username": "admin",
       "password": "smpebi",
       "ip": "129.13.51.105",
       "mac": "00-05-A6-14-77-E6",
       "type": "SMP 351",
       "additional_camera": true,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"Dual Link License\", \"network_port\": \"\", \"rsync_name\": \"\"}"
+    },
+    {
+      "name": "CS 40.40 Hoersaal Sport",
+      "building": "40.40",
+      "room": "Hörsaal Sport (R007)",
+      "username": "admin",
+      "password": "smpsport",
+      "ip": "129.13.51.111",
+      "mac": "00:05:A6:1A:4E:61",
+      "type": "SMP 351",
+      "additional_camera": false,
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"Dual Link License\", \"network_port\": \"\", \"rsync_name\": \"\"}"
+    },
+    {
+      "name": "CS 30.34 Lichttechnik-Hoersaal",
+      "building": "30.34",
+      "room": "Lichttechnik-Hörsaal (LTI)",
+      "username": "admin",
+      "password": "smplti",
+      "ip": "129.13.51.112",
+      "mac": "00:05:A6:1A:4E:69",
+      "type": "SMP 351",
+      "additional_camera": false,
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"Dual Link License\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 11.40 Johann-Gottfried-Tulla-Hoersaal",
       "building": "11.40",
-      "room": "Tulla H\u00f6rsaal",
+      "room": "Tulla Hörsaal",
       "username": "admin",
       "password": "smptulla",
       "ip": "129.13.51.106",
       "mac": "00-05-A6-14-D6-47",
       "type": "SMP 351",
       "additional_camera": true,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"Dual Link License\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 30.22 Otto-Lehmann-Hoersaal - Mittl. HS",
       "building": "30.22",
-      "room": "Otto-Lehmann H\u00f6rsaal",
+      "room": "Otto-Lehmann-Hörsaal (Mittl. HS)",
       "username": "admin",
       "password": "smplehmann",
       "ip": "129.13.51.107",
       "mac": "00-05-A6-14-DD-0D",
       "type": "SMP 352",
       "additional_camera": false,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.04",
       "description": "{\"comment\": \"2 Projektionen \", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 30.22 Gaede-Hoersaal",
       "building": "30.22",
-      "room": "Gaede H\u00f6rsaal",
+      "room": "Gaede Hörsaal",
       "username": "admin",
       "password": "smpgaede",
       "ip": "129.13.51.108",
       "mac": "00-05-A6-17-EF-5F",
       "type": "SMP351 + DLL",
       "additional_camera": false,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"2 Projektionen \", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "CS 10.11 Hertz-Hoersaal",
       "building": "10.11",
-      "room": "Hertz \u2013 H\u00f6rsaal",
+      "room": "Hertz - Hörsaal",
       "username": "admin",
       "password": "smphertz",
       "ip": "129.13.51.109",
       "mac": "00-05-A6-18-41-C7",
       "type": "SMP 351",
       "additional_camera": true,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"Dual Link License\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
-      "name": "Campus Ost 70.04 SR219",
+      "name": "CO 70.04 Raum 219",
       "building": "70.04",
-      "room": "CO 70.04 SR219",
+      "room": "70.04 FAST, Raum 219",
       "username": "admin",
       "password": "7004sr219smp",
       "ip": "129.13.51.110",
       "mac": "00-05-A6-18-41-C2",
       "type": "SMP 351",
       "additional_camera": false,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"FAST Gauterin\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
-      "name": "ILIAS-HS_3",
-      "building": "30.50",
-      "room": "Test-LR",
+      "name": "CS 30.21 Gerthsen-Hoersaal",
+      "building": "30.21",
+      "room": "Gerthsen-Hörsaal",
       "username": "admin",
-      "password": "lrgrashof+-",
-      "ip": "172.23.8.102",
-      "mac": "00:55:56:f4:88:e1",
-      "type": "DVI Broadcaster DL",
-      "additional_camera": false,
-      "firmware_version": "3.12.0k",
-      "description": "{\"comment\": \"von Axel\", \"network_port\": \"MZ\", \"rsync_name\": \"\"}"
+      "password": "smpgerthsen",
+      "ip": "129.13.51.119",
+      "mac": "00-05-A6-1D-66-DF",
+      "type": "SMP351 + DLL",
+      "additional_camera": true,
+      "firmware_version": "3.05b002",
+      "description": "{\"comment\": \"1+2 Projektionen \", \"network_port\": \"\", \"rsync_name\": \"\"}"
+    },
+    {
+      "name": "CS 10.21 Gottlieb-Daimler-Hoersaal",
+      "building": "10.21",
+      "room": "Gottlieb-Daimler-Hörsaal",
+      "username": "admin",
+      "password": "smpdaimler",
+      "ip": "129.13.51.99",
+      "mac": "00-05-A6-20-13-5D",
+      "type": "SMP351 + DLL",
+      "additional_camera": true,
+      "firmware_version": "3.06",
+      "description": "{\"comment\": \"\", \"network_port\": \"\", \"rsync_name\": \"\"}"
+    },
+    {
+      "name": "CS 10.21 Carl-Benz-Hoersaal",
+      "building": "10.21",
+      "room": "Carl-Benz-Hörsaal",
+      "username": "admin",
+      "password": "smpbenz",
+      "ip": "129.13.51.100",
+      "mac": "00-05-A6-20-13-57",
+      "type": "SMP351 + DLL",
+      "additional_camera": true,
+      "firmware_version": "3.06",
+      "description": "{\"comment\": \"\", \"network_port\": \"\", \"rsync_name\": \"\"}"
     },
     {
       "name": "Opencast-qa: Test-SMP KIT",
@@ -270,7 +284,7 @@
       "mac": "00-05-A6-16-A3-E4",
       "type": "SMP352",
       "additional_camera": false,
-      "firmware_version": "2.11b0",
+      "firmware_version": "3.05b002",
       "description": "{\"comment\": \"von FM\", \"network_port\": \"MZ\", \"rsync_name\": \"\"}"
     }
   ],