I have a dvd rip and in the ts video folder it is all .vob , .ifo ,and .bup files. I'm not sure what program was used to create these. Anyways if i open the vob files with power dvd on my sytem everything is great but when i burn it to dvd the sound is gone except for the menu sound. I used nero burning rom 6 and tried nero express as well. I've burned dvds this way before and it worked fine so i'm at a loss. Thanks in advance to anyone who can help me.