I'm looking for a firmware that does bitsetting (+R and +R DL) to DVD-ROM for a AD-7260S drive. This may be elementary but I'm not finding any thread that plainly lays out the difference between "Orig", "RPC1", "Auto", "Liddy's firmware", and "Original firmware". There are 30 options to pick from and would like to know which firmwares, if any, have complete bitsetting support for both +R and +R DL media. Thanks.
I'm referring to this page: