According to an article at DigiTimes, Behavior Tech Computer has decided to stop marketing optical disc drives under the BTC brand.
Behavior Tech Computer (BTC), a leading Taiwan-based maker of PC keyboards and mice, on June 26 announced it will discontinue marketing optical disc drives (ODDs) under the BTC brand name at a press conference following the company's 2006 shareholder meeting.

BTC cited intense market competition as the reason for its move. BTC originally made own-brand ODDs itself but shifted production on an OEM basis to Foxconn Electronics (the registered trade name of Hon Hai Precision Industry) last year.
If you'd like to read more, head on over to DigiTimes.