do u know that TOSHIBA SDM 1612 dont reads DVD+rw and DVD+r media,my friend tolde me that and i think to tell you about that ,BTC 316b is insde SONY DDU 1621 it has some HIGH seek times with CD-RW media and read at 24x max,also BTC was the worst performer of SAFEDISC ver 2 the last time i check, TOSHIBA has a dvd ripping speed that hovers around 4x.
key 2 audio and cds200 are the worst scenarios for any dvd drive (even toshiba) so forget about that i cant even recognized the disc fully with any dvd rom and it halts ((ASUS LITEON BTC all).
toshiba and BTC cant take scratched media at all .
toshiba and btc have released new firmwares frequently but i doubt that each and every problem fixes with firmware upgrade and btc drive starts ripping cd s200 or key 2 audio
if u find any of my sayings wrong or find any interesting thing then please tell me.
i suggest LITEON LTD 166s as the best all purpose reader.