Imgburn 2.5.1
Installed last week to burn a HDD based compiled (personal) DVD.
Did the job fine but I couldn't watch with either Windows Media Player 11 or PowerDVD.
WMP just says "Unknown DVD" and PowerDVD plays sound only with swirly patterns on the screen.
So, after checking I still had all the codecs installed I went back to a pre-ImgBurn-installed HDD and WMP, etc., worked fine.
So I installed ImgBurn to burn another copy of my DVD.
Burned the DVD and now will only play with VLC - same as last week.
The conclusion seems to be that ImgBurn trashed some setting which prevents WMP & PowerDVD accessing the codecs.
Same problem even after uninstalling ImgBurn.
BTW - I did reinstall WMP 11 and repaired Win XP SP3 just in case.