Recommendations for Commercial Backup packages?

[Tom Buskey]

bscott at ntisys.com wrote:
> On Tue, 16 Dec 2003, at 11:05am, p.lussier at comcast.net wrote:
> 
>>I've always handled that by splitting the file system up into smaller
>>chunks by backing up the subdirectories individually ...
> 
> 
>   Yah, yah.  If that would work I'd do that.  :-)  The problem is, this 500
> GB data store is all one big collection of constantly evolving data.  
> There's no easy way to break it down into small pieces.  I suppose I could
> craft together some kind of automation that would create backup selection
> sets on the fly, each one designed to fill a tape, but man, that would be a
> *kludge*, and make restores and tape management a minor nightmare.
> 

Some of the backup onto CD packages have something to do this I assume? 
    CDs are smaller then tapes.