Clone from HDD to DMG on external drive fails

[bdwilson]

I've tried this multiple times (at 2 hours a pop) and it fails each time. Source disk is 25GB full, destination is 160gb firewire drive with 85gb free.

|12:55:46 PM|Info| Scanned 232418 items occupying 24.51 GB (36375 directories, 189177 files, 6866 symlinks)
|12:55:46 PM|Info| Copied 232329 items totaling 24.01 GB (36360 directories, 189105 files, 6864 symlinks)
|12:55:46 PM|Info| Cloned 24.01 GB of data in 7911 seconds at an effective transfer rate of 3.11 MB/s
|12:55:46 PM|Info| PHASE: Conclude Target Setup
|12:55:46 PM|Info| ...ACTION: Finalizing "pbook_10.3.9+apps+Users_042205_SuperDuper.dmg " session
|12:55:46 PM|Info| ......COMMAND => Unmounting /Volumes/Storage/backup/images/pbook_10.3.9+apps+Users_042205_SuperDuper.dmg from /tmp/SVUmount
|12:55:53 PM|Info| "disk2" unmounted.
|12:55:53 PM|Info| "disk2" ejected.
|12:55:53 PM|Info| ......COMMAND => Converting /Volumes/Storage/backup/images/pbook_10.3.9+apps+Users_042205_SuperDuper.dmg to UDRO format
|12:55:54 PM|Error| hdiutil: convert failed - image/device is too large

Any ideas? I'd like to be able to use the image created with ASR, hence using a DMG.

Also, I've tried disabling compression and get the same error. This error also happens with Carbon Copy Cloner. Just wondering if you had a suggestion on howto back things up in order to have a bootable restore image. I'm beginning to prepare for the Tiger upgrade!

Thanks,
B