I'm italian, I have got 2 drivers DVD-RAM: Panasonic LF-D521 (also DVD-RW/-R) and LG GSA-4040B (Super DVD multi). Both 2 drivers are original version without firmware.
I have many DVD-RAM medias with and without cartridges (and camcorder) also others brands: 2.6GB, 2.8GB (8cm), 4.7GB, 5.2GB and 9.4GB.
While we are on the subject - does anyone know whether a panasonic standalone should play dual layer disks? Do I assume there will be a problem because dual layer is a +R format and panasonic read only -R and -RAM? I thought I read somewhere that dual layer is the true DVD Video format and all modern players should read it - but I'm new to all this and dont know what to believe at present. I'm thinking of buying a panasonic standalone and my PC will burn dual layer using pioneer 108 that says it has bitsetting to make all dual layer disks into 'DVD-ROM format' on burning(whatever that means).
The drive Panasonic does support all DVD-RAM media also 2.6GB/5.2GB writing and recording.
The drive LG does support DVD-RAM media in the use 4.7GB of type II or 9.4GB of Type IV can remove from cartridge before burning, but DVD-RAM 5.2GB/9.4GB of Type I (non-removable) or DVD-RAM 2.6GB of Type II (removable) aren't compatible with LG drives.
Media (brand original Ritek and ProDisc) DVD-R 9.4GB and DVD+R 9.4GB (these aren't DVD DL 8.5GB, but double side) can use in drive LG. The DVD-RAM 2.8GB media (old or new mini-cartridge 8cm) can use either camcorder or burning (can remove from mini-cartridge!).
For enzo78 advise to acquire driver LG Super DVD multi (DVD-R/-RW and DVD+R DL 8.5GB/+RW/+R and DVD-R/DVD+R 9.4GB included) last model for you, please.
Also I'm buying and I prefer to wait for new model LG with DVD-R DL 8.5GB and DVD-RW 6x and perhaps DVD-RAM 16x (I'm sure DVD-RAM 5x) that it will begin to september.
P.S.: the DVD-RAM 2.6GB/5.2GB media (before/after formatted) doesn't support DVD recorder!