10+ years registered AnyDVD HD lifer. Reinstalled Windows 8.1 Pro due to an unrelated Media Center issue and in the process decided to take the opportunity to upgrade from AnyDVD HD 184.108.40.206 to the currently offered 220.127.116.11 version. After installing TotalMedia Theatre, TMT would not start. I realize TotalMedia Theatre is deprecated software, but TMT + Virtual CloneDrive still work better for my media needs than any other software I've used and I don't replace a working car just because there are newer ones available. In defense of my post, I would make the same inquiry as to why AnyDVD HD would interfere with Word 97 (also deprecated), if that were the case (just an example), as obviously change made between the versions I've noted has caused an unwanted side-effect and I think developers should know when there could be potential issues with their product. I'm not asking for help trying to install or get TotalMedia Theatre to run, it runs just fine. I'm posting to say, it won't do so when the current version of AnyDVD HD, 18.104.22.168 is open. When AnyDVD HD 22.214.171.124 is running, an otherwise working installation of TotalMedia Theatre can not be started. TMT starts with it's spinning, rotary loading icon, attempts to open it's GUI window, and hangs with the GUI window remaining an indefinite solid black and Windows reporting the program is not responding. TMT terminates correctly through both Task Manager and the not responding dialog and can be reopened with consistent results. As soon as AnyDVD HD 126.96.36.199 is exited, TotalMedia Theatre can be started perfectly fine and AnyDVD HD 188.8.131.52 can then be restarted without causing any further issues. Removing the check by "Enable AnyDVD" does not fix the issue and the issue persists whether default or custom settings are used. AnyDVD HD 184.108.40.206 must be closed for TMT to start. I tested each version of TotalMedia Theatre 6 in an attempt to locate the issue before realizing it was AnyDVD HD 220.127.116.11 causing the failure to launch, with the following results: 18.104.22.168 - works 22.214.171.124 - works 126.96.36.199 - fails 188.8.131.52 - fails 184.108.40.206 - fails Not experiencing this behavior with AnyDVD HD 220.127.116.11 or earlier and to verify the behavior is due to the new version, reinstalled the old version. TMT starts perfectly fine when AnyDVD HD 18.104.22.168 is running. For completeness, I went ahead and tried every version of AnyDVD HD from 22.214.171.124 to 126.96.36.199 with the following results : 188.8.131.52 - works 184.108.40.206 - works 220.127.116.11 - works 18.104.22.168 - works 22.214.171.124 - works 126.96.36.199 - works 188.8.131.52 - works 184.108.40.206 - works 220.127.116.11 - works 18.104.22.168 - works 22.214.171.124 - works 126.96.36.199 - works 188.8.131.52 - works 184.108.40.206 - works 220.127.116.11 - works 18.104.22.168 - works 22.214.171.124 - works 126.96.36.199 - works 188.8.131.52 - works 184.108.40.206 - works 220.127.116.11 - works 18.104.22.168 - works 22.214.171.124 - works 126.96.36.199 - works 188.8.131.52 - works 184.108.40.206 - works 220.127.116.11 - works 18.104.22.168 - works 22.214.171.124 - works 126.96.36.199 - works 188.8.131.52 - works 184.108.40.206 - works 220.127.116.11 - works 18.104.22.168 - works 22.214.171.124 - works 126.96.36.199 - works 188.8.131.52 - fails 184.108.40.206 - fails 220.127.116.11 - fails 18.104.22.168 - fails 22.214.171.124 - works The repository of versions at https://www.videohelp.com/software/AnyDVD/old-versions#downloadold has a newer 126.96.36.199 version which works. Hopefully the Dev team has an idea what was changed and TMT doesn't get torpedoed by future versions of your otherwise wonderful software.