The organization I work for uses Fantom DVD drives exclusively. We primarily use type I 9.4 Gb DVD Ram cartridges. The drives work with just about any recordable media, CDR, CDRW, DVD, DVDR, DVDRAM, Mini CDR, etc... They have been on non-stop for about 2 years and havent shown any problems. They like expensive media, that seems to thing that they are a little quirky with. They are also pricey compared to their counterparts.
The only draw back is that the plastic case attracts dust. This looks unsightly, especially around the door.
We have swapped them between PCs and Macs. No issues, less with Windows, which seems to be a little sketchy with the drivers and disk mounting.
For my personal CD writing, I have a USB QPS Que drive. It works well for me.