I posted the following over on the NEC forum - but I thought that it may be useful here-
I have both the AOpen 1648/aap and /aap Pro-
The aap Pro with new firmware version 1.02 is faster than the regular aap with firmware version 1.07!!
On a 7.75 Dual Layer pressed DVD movie-
aap Pro= 12.92x max read; 9.76x average; 10.45 minutes read time
aap= 12.30 max read; 9.31x average; 11.18 minutes read time
The Sony 1612 (LiteOn 166s)= 9.67x max read; 7.07x average read; 15.24 minutes read time-
The NEC nd-3500AG= 7.13x max read; 5.35x average read; 19.54 minutes read time-
You can see why the 1648/aap & aap Pro are so widely recommended as a $25 addition to your burning setup-
You can get the aap Pro from www.newegg.com for around $25 - wouldn't this make more sense with your other drives??