thank you LUK and blutach for your responses. i have no intentions of simply blaming this on ImgBurn itself or at all. also i have no intentions to say either of you are wrong. i highly respect both of your opinions and it is my opinion that ImgBurn is the best burning engine. i recommend it all the time and install it for people i know.

i have in fact not had 10 fails, probably more around 7 fails with the 165p6s and 0 (zero) with the 20a1p. each time the failure occurs is only when running ImgBurn via CLI from my ripper. my first thoughts were the drive is going bad. however just after the failure i close ImgBurn then close the ripper, reopen imgburn, insert a new disc and it works.

this does not appear to be coincidental in my experience. every time i use the 165p6s drive i have been getting the error. and never have with the 20a1p. and only has the error occurred when opening from my ripping program.

i will do more testing and report back.

thank you LUK for taking the time to reply.

troy