Hi all, I've just bought A Sony DRU500a DVD writer and trying to use the Sonic MyDVD software that came with it. However on loading the software and adding mpegs (home videos of variable sizes) the Burn button is greyed out. Sony's website states this is because the files are too big for the DVD which is can;t be true as I've even tried a file 25mb and it still greyed out. When I use the hotkey to burn it states there is no disk in drive (which there is!) I have used the "Showbiz" part of the program to burn to disk (which it says it successfully does and kicks out DVD on completion) but when I try and use it there seems to be nothing on the disk. Any ideas as I'm losing hair rapidly!!