Digital
Logging Recorders
Audio Storage Hours*
| Model | VR778, VR725, VR615 | ||
| Frequency Response | 200Hz to 3400Hz | ||
| Sample Rate | 8kHz | ||
| Data Compression | 13kbps GSM | 16kbps ADPCM | 32kbps ADPCM |
| Archive Media | Audio Storage Hours | ||
| DVD-RAM 9.4GB | 1,540 | 1,280 | 630 |
| DVD-R 4.7GB | 770 | 634 | 317 |
| DDS-4 Tape -20GB | 3,200 | 2,650 | 1,325 |
| 120GB Removable HD | 19,800 | 15,960 | 7,980 |
| Internal Hard Disk | Audio Storage Hours | ||
| 120GB (standard) | 19,800 RAID 1 | 15,960 | 7,980 |
| 250GB (VR725 std) | 41,250 RAID 1 | 33,250 | 16,625 |
| 120GBx4 hard disks (opt) | 59,400 RAID 5 | 47,700 | 23,850 |
| 250GBx4 hard disks (opt) | 123,750 RAID 5 | 101,250 | 50,625 |
*Audio storage hour equals one channel recording audio continuously for one hour.