Just a quick questions about bit setting, is it an automatic feature which is automatically applied once the firmware is flashed or do I need a specific program to enable this feature?
Does it work for all kinds of media for the 3520A, I primarily use DVD5 +R. Would that be the best choice for DVD Backup?
if the firmware revision has autobitsetting for all +R media (SL+R, +RW, DL+R) then it will automatically set it to -ROM with any DVD writing software you use.
as for the +R being the best for backing up DVD's, it is arguably better than -R's if thats what youre asking. Without bitsetting, DVD-R's have a slight advantage over +R's as far as DVD Player compatibility. But when +R's are changed to -ROM, some say that the compatibility will even be better than -R.
There is no difference between + and - DVD media other than compatibility and sometimes, +R media seems to write at faster speeds on some DVD writers. Aslong as your DVD player isnt ancient, both media standards should playback fine and it doesnt really matter whether you get + or - media. More importantly, you should decide what BRAND of DVD+-R's to get. I myself like to stick with Taiyo Yuden (the best), Maxell's own Made in Japan media (MXLGR02/03, equal to Taiyo Yuden quality).
another little note is that +R media isnt actually an official DVD media standard (it doenst carry the official DVD logo with the text "DVD" with a disc under it) whereas -R media is. This doesnt really mean anything though but i just thought youd like to know =].