Well, let's start after the introduction above
My drive is part of a Dell notebook and came with D300 firmware, which is the latest at the moment.
The drive supports CD media at 24x max and DVD media at 8x. Detailled specs can be found here:
http://support.euro.dell.com/support...14/en/spec.htm Nero Info Tool 5 reports this:
Properties_Infotool5.png DVD-RAM support is totally removed (the drive can't even read DVD-RAM discs) although the information about supported DVD-RAM discs is still present in firmware.
EDIT: DVD-RAM support is enabled with firmware D400, released by Dell on April 1st, 2008
MCSE_RAM.png
But at least the firmware seems to be supported by MCSE, including the RPC1 patch
Also, Nero InfoTool reports CD-Text writing as not supported

ImgBurn disagrees about the CD-Text capabilities of this drive.
EDIT:
CD Text writing works, so this is a InfoTool bug.
Properties_ImgBurn.png
I am testing at the moment, so we'll see who is right there
After having edited the registry, scanning is possible

The following disc is a Ricoh Ultra Speed branded RICOHJPN R03 (MII)
TSSTcorpDVD+-RW_TS-L632H_D300_15-March-2008_23_28_scan.png ScanOverview_TS-L632H.png
The scan results of my USB connected Liteon SHM-165P6S look like this:
LITE-ON_DVDRW_SHM-165P6S_MS0R_14-March-2008_23_01.png ScanOverview_SHM165.png
Please note that - due to the USB connection - not all errors are gathered, so the scans made with that drive are "too optimistic"