Why can't my 20A4P does Jitter test?


Maybe it’s a stupid question, but I can’t find any clue to solve this: why can’t my 20A4P 9P59 drive does jitter test in CD-DVD speed Thanks.

Do you have the version uploaded by C0deKing that enables jitter scanning on certain drives?

Thanks for your reply Albert, I have not got the version uploaded by C0deking, but I have figured out that when the option “jitter (DVD)” is enabled in “advance” of Discspeed (newer version) after you insert a DVD+R/-R disc, DH20A4P could does jitter test, but after the PIE/PIF test complete.