7th Guest: Replace audio or video with the tracks from CD-i?

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basti007
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Joined: Thu Sep 12, 2013 11:24 am

7th Guest: Replace audio or video with the tracks from CD-i?

Post by basti007 »

I know that ScummVM has the possibility to replace the CD audio music tracks with external audio files so you can play it without the CD. Now I wonder: Is there any way to replace the internal audio and/or video files within the VDX format of the 7th Guest with external files as well or are there plans to offer such a feature in the future?

The reason why I ask is this: While ScummVM can not play the CD-i version of The 7th Guest, these versions are still quite interesting:

- For one, all videos on the CD-i disc are saved as an MPEG1 files with 25 fps instead of the 15 fps from the PC version (or 30 fps for the NTSC version, I guess). Thus, videos play more smoothly. However, one has to say that the resolution is lower than the VESA version of the PC. Still, when actors are involved, it looks a little better.

- For the other - and probably even more important: Philips has localized the game into more languages than Virgin did for PC. For example, I own the German version of The 7th Guest and they did a quite good job with dubbing the game. And since nearly 20 years I wanted to play that version with the German sound files instead of the English ones.

The format of the CD-i disc is Green Book, but it's an easy task to extract at least the MPEG stream of the disc via Isobuster even if the CD-drive can not read the directory structure. Alternatively, one can of course also dump the whole CD-i as a RAW bin. So, is there any way to drop audio files (or even video files, or the CD-i image if it matters) into the game directory that, if available, are played during sequences instead of the audio (or video) of the VDX files? This would make it possible for the first time to play the game with German sounds - or the videos with more fps.
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