'Ultra' is a company name on a DVD+RW sold by Tiger Direct, as Tiger item No. B145-2040, and I believe it may be 'Ultra' part number U91-9010
This is, I'm sure, the same Ultra that makes Ultra memory.
Was it made by BenQ?
Yes it's the same Ultra that sells memory (see this search result and have a look at the previous pages).They don't make DVD drives, but I can't find any info about it on any hardware sites, so I don't knwo who origionally made it:(