I never use DVD-9 DL unless it's absolutely necessary. The authoring program has to place a Layer break in the Video_TS...and many DVD standalone players still have trouble with the layer break..and hang up. 2nd the more Data you place on this DVD like multiple audio files means less room for Video quality. Think about it, all those audio streams on the same disk..and you can only play one of them at a time...and many persons standalone Stereo don't even support DTS..just Dolby. So it's more practical just to make 2 dvd's- one with the Dolby...one with DTS. Once we have the authoring done and save the "project" it just takes a second to swap out the Dolby track with the DTS..and compile again and burn...just another .30 cent disc! Before you get carried away with all this DGPulldown...and re-authoring...Please Just rip the disc with DVD Shrink, or Decrypter, AnyDVD,clonedvd,dvdfabexpres,etc..and remove the RC (region code) set the new Video_TS you're "backing up" to your HD- to Region 0 (region free) and then use DVD ReBuilder(or Nero Recode to "back-up" the entire disc...burn with Nero or other burning soft. Try it in the Player again...it will still be PAL but without the Region (marketing) restriction..If you stick it in and a message comes across the screen----Reading....... Don't be worried..it takes the Player longer to Read the different PAL Format...It might just be a Region Code problem..Europe is Region 2, US is Region 1. If another message comes up then saying can't read format or No Disc..the you should tackle the Re-Authoring. You could just upload the .mp4 file to BitTorrent, NanoTorrent, Limewire, etc.....I have all of them...and no static IP address, Port stealthing, Peer Guardian, and other "stuff" Just give me the title and where to look.