Who are the manufacturer of dvd+r and -r? How can i identify them? A friend of mine say that sony, tdk andphilips, all manufactured by RICOH. Is this true?? How can i verify? Is ther a database of dvd+r and -r manufacturers?
You can use the following utilities to identify DVD burnable discs' manufacturers:
I'm sure there must be other apps, but those I know of myself.
Philips - Ricoh(DVD+R)/MCC(DVD+R)SONY - Ricoh(DVD+R)/Sony(DVD-R)TDK - RIcoh(DVD+R)/TDK (DVD-R)
Philips DVD+R can also be CMC Magnetics.Sony DVD-R can also be MCC and Pioneer. Sony also has an own verified ID for 4x DVD+R media but I haven't seen them yet.TDK DVD-R can also be Maxell and Taiyo Yuden.
Other programs to check manufacturer ID is DVDInfo and Nero CDSpeed.
DVDRHelp has a pretty extensive list of media with their mfr ID's/media codes.