Thank you in advance for any help you can provide. I have a DVD-R with no weird settings of any kind - one page menu with single timeline and interspaced chapters. Play All feature set but no auto play or quick eject code on the disk. Using Verbaitum on industrial pro pioneer burner the disks in question were burned at two different speeds (I like to burn slow but had a time chrunch and had some burn faster) 2 were at 1X and 3 were at 4X. I made around 180 copies of this education video we compiled. Haven't had many problems except a few players that had a problem with VBR bitrate. Changed that to 7CBR and haven't had any further problems until now. Two instances of people playing the disk the whole way through with out any problems, jerks or other difficulties - and were totally satisfied no notable menu navigation problems or playing problems. However, they tried to play it a second time and suddenly they have audio but no picture; or so they say. Has anyone heard of this sort of problem before? It has only happened to two users - I am in the process of finding out what players they use.

The forum has been a great wealth of knowledge in the past and I really need some help on this one. Any response that would be of assistance is greatly appreciated.

EM