ok if you have a pionner 105 dvr/rw the best way i have found to backup dvds to play on ps2 is to do it this way.
firstly i found that backing up my dvds using copy on the fly (from one dvd rom to my writer) cause flaws when playing them on ps2 like freezing and the picture jerking so the best way i found out to do it to make them work perfect is use your dvdr as the reader to transfer them to your harddrive it will then ask when its finished transfering the file to your harddrive for a blank dvdr for to transfer the files. i done all mine with it and they all work perfect i will admit it take a little longer but it works out better.
Mind you if you want to try it the other way you might be lucky.
Oh peace of advice dont use smart ripper or anything like to rip them to hardrive then transfer them to dvdr cause i tried it that way and my ps2 wouldnt read the disks.
good luck all if you need any help please email me as i wont be on here for a few days but will check my emails everyday.
lollyruk19**********com