User`s manual

54
PAL DCT Compression according to CCIR-601
Compression 18GB 36GB 73GB 147GB 180GB 1.2TB 1.8TB
Ratio
External Drive Chassis
2:1 27:40 0:55:20 1:50:40 3:41:20 04:36:40
30:06:48 45:10:12
2.5:1 33:40 1:07:20 2:14:40 4:29:20 05:36:40
36:38:38 54:57:58
3:1 44:44 1:29:28 2:58:56 5:57:52 07:27:20
48:41:22 73:02:02
3.5:1 50:50 1:41:40 3:23:20 6:46:40 08:28:19
55:19:44 82:59:36
4:1 56:56 1:53:52 3:47:44 7:35:28 09:29:20
61:58:06 92:57:09
5:1 1:07:18 2:14:36 4:29:12 8:58:24 11:12:59
73:15:06 109:52:39
6:1 1:17:56 2:35:52 5:11:44 10:23:28 12:59:20
84:49:31 127:14:17
7:1 1:26:28 2:52:56 5:45:52 11:31:44 14:24:39
94:06:48 141:10:12
8:1 1:38:44 3:17:28 6:34:56 13:09:52 16:27:20
107:27:53 161:11:50
9:1 1:53:56 3:47:52 7:35:44 15:11:28 18:59:20
124:00:33 186:00:49
10:1 2:03:26 4:06:52 8:13:44 16:27:28 20:34:20
134:20:57 201:31:26
12:1 2:28:06 4:56:12 9:52:24 19:44:48 24:41:00
161:11:50 241:47:45
14:1 2:44:34 5:29:08 10:58:16 21:56:32 27:25:40
179:07:13 268:40:49
16:1 3:05:08 6:10:16 12:20:32 24:41:04 30:51:20
201:30:20 302:15:31
20:1 3:31:36 7:03:12 14:06:24 28:12:48 35:15:60
230:18:47 345:28:10
24:1 4:06:52 8:13:44 16:27:28 32:54:56 41:08:40
268:41:54 403:02:51
34:1 4:56:14 9:52:28 19:44:56 39:29:52 49:22:20
322:25:51 483:38:47
Restrictions:
Due to drive speed variations, the following drives should not have a total record time lower than the
value specified in this table:
Due to drive speed variations, the following drives can only be used at the compressions specified in this
table:
Drive type ST34371N/W
ST34572N/W
ST19171N/W
ST34501N/W
ST19101N/W
ST34573N/W/LW
ST39173N/W/LW
ST39175LW
ST118273N/W/LW
ST318275W/LW
ST136475LW
ST150176LW
All newer Barracuda
ST34502LW
ST39102LW
ST39103LW
ST118202LW
ST318203LW
ST136403LW
ST373405LW
All newer Cheetah
Minimum Compression Ratio (2 Fields) 4:1 or higher 3:1 or higher 2.5:1 or higher 2:1 or higher