The logical structures of Jaz cartridges are very similar to that of hard disks. There fore, the reasons for data loss from Jaz cartridges are essentially the same as that of Hard disk - inaccessible areas of that drive, invalid FAT, unreadable sectors etc.

Our data recovery rate for jaz is in excess of 85%, error messages produced by corrupt jaz cartridges include;
Invalid or corrupt FAT
Invalid partition
Invalid sector
Cannot find file or program
Invalid Command.com
Disk I/O Error
Clicking or 'Click of Death' (CoD)
We can perform data recovery on 1GB and 2GB jaz drives.

The data is returned on CD-ROM.