on-mkisofs ?

Hello, I have a Linux server with IDS 9.21UC3 evaluation but the machine doesn't have a tape streamer. I do have a cd-writer and I'm looking for a replacement for 'ontape' (other than having ontape write to temporary file and then run mkisofs and then cdrecord). Now what I was wondering : is it possible to directly output informix data into ISO9660 format? If there were something like 'onmkisofs' then I could specify the pipe onmkisofs | cdrecord to make a backup (so piping the output of onmkisofs directly into cdrecord). I must say that with SE (standard engine) this is not much of a problem. Because SE is filesystem based, I can just do a regular mkisofs of all .dat files and .idx files and pipe the output of mkisofs directly to the cdrecord utility for burning the cd ... Maybe ontape could write to a fifo and then mkisofs could take its input there (I doubt this is possible) and then pipe through to cdrecord ? Thanks, david.