There's a good guide on how to add subtitles to a DVD supplied with SubtitleCreator (.pdf file in the Documentation folder). Basically, what you need to do is this: 1. Copy the DVD files (vob/ifo/bup) to your harddisk using DVDDecrypter (R.I.P.) or DVDShrink (no compression, just 1:1 copy in order to decrypt the DVD) 2. Demux the video/audio/subtitle streams of main movie using PgcDemux (remember to also save the celltimes.txt file) 3. Create a SUP file out of your text subtitles, using SubtitleCreator. If you want to keep any subtitles from the original DVD, make sure to use the colour table from the main movie PGC on the original DVD (load IFO file into SC) 4. Mux the video/audio streams together with your new subtitles+any original subtitle streams you want to keep, using MuxMan. 5a. If you just want the main movie (no menus etc. from original DVD) and if you reused the subtitle colour table from the original DVD in step 3, you have to copy the colours for the original main movie PGC (on the original DVD) to the newly authored DVD (from step 4), using PgcEdit. or 5b. Alternatively, if you want to keep the menus etc. of the original DVD, you can do this with VobBlanker: Open the original DVD (harddisk files) in VobBlanker and select the PGC with the main movie. Click Replace PGC and select the IFO for the newly muxed DVD from step 4. Good luck!