Simple Qs re: incremental backups

[mjsinger]

Can Retrospect 6.0 do incremental backups to DVD-R on a Mac G4 with a SuperDrive?

 

Does the same hold for Retrospect 5.0.238 under OSX or OS9?

 

Can't seem to find an explicit answer to this Q in the knowledgebase.

 

TIA,

 

Mike

[mjsinger]

I should have noted that I understand (from the Roxio Toast site) that "Mac HFS multisession disc are not supported in the DVD spec," but was wondering if Dantz had used their talents to find a way around this.

[natew]

Hi

 

If the drive is supported by your version of Retrospect then it will do incremental multisession backups to optical media. What is the make/model of your drive? Superdrive can be any number of drives.

 

Thanks

Nate

[mjsinger]

Thanks Nate -- I have a Pioneer DVD-RW DVR-103. I see that it is on the "qualified" list.

 

So, just to make sure I understand -- an incremental backup could be made to the last CDRW or DVD-R in a backup set if that last disc was only partially filled; there would not be a need to add a new disc to the set. Is that right?

 

My concern arose from my reading of p. 31 of the Retrospect 6.0 manual, which states "... Previously recorded CD-R, DVD-R, or DVD+R media cannot be erased and thus cannot be used by Retrospect."

 

I read that as implying that every time an incremental backup is done, the user -would- need to add a new, blank CD or DVD whether or not any room was left on the last CD or DVD in the backup set.

 

Maybe the manual could use some clarification regarding this "multisession" capability.

[natew]

Hi

 

The manual means to say "DVD+R is write once media. You can't erase it and use it again."

 

Retrospect does not finalize disks the way other burning utilities do. As a result you can incrementally add data in multiple sessions until the disk is full to any disk. This is true for write once media or multiple write media.

 

You do not need to add a new disk after each incremental backup.

 

Thanks

Nate