I had been using nero 5.5 and dvdshrink 2.3 and was doing excellent with no coaters, well I'm back to burning dvd's again after about 1 month and now I get nothing but coasters and using the software exactly how I did before. I uninstalled all the software and re-installed and added Nero 6 this time and still getting coatsers. It says the burning completed successfully, but I get "disk error" in my Toshiba dvd player. I am using the same Ritek disks as I did before. I tried dvdXcopy and burned one that worked perfect. So its got to be something with the Nero or dvdshrink. Anyone had this problem of all the sudden you get coasters? Please help.