Ive got a problem trying to copy my back-up discs.Whenever i open the disc in shrink it comes upmwith invalid navigation structure.I wondered if this was because i havent got a dvd player running such as windvd,does shrink need something to open the disc first?I have got windvd4 but cannot get it to run with xp,i previosly found an update to overcome this prob but cant remember where i got it from.Dvd shrink works fine with originals and ive just updated to 3.17,however another problem ive had is if i do anything else on the computer while backing up,it freezes the frames,so the copy is no good.now i have to let it run on its own,i nver had this problem using 3.14beta,is it shortage of memory?i have 512 pc2100 ddr.Thanks for any answers to my questions

Thanks for the reply afonic,but ive already tried version 3.1.6 and have gone onto 3.1.7.The problem being that dvd shrink will pause if i do anything else on the computer and also copy this over onto the dvd,so when its played back the frames freezes at the point of which im using the computer.It does this even if im just retreiving e mails or go on the internet.3.1.4 never had this problem.
Ive solved the problem with windvd by updating my graphics drivers,also the error i was getting on shrink,Invalid navigation structure.The only way i could overcome this was by using alcohol120 when this problem occurred.It only happens when i try to backup discs recorded from another source,not when backing up originals.
Thanks again, im sure something will come up that will allow me to multi-task again