>> Monday, March 10, 2008
Part 1 discussed CD-i video capturing using hardware, but is it also possible with software? Old CD-i disc often have a more obscure format in the way they hold audio and video. For example, take two CD-i discs from Philips/Smithsonian Institution called "The downtown blues" and "The uptown blues". Their video files are in .rtf format. It is possible to read the discs with Isobuster but it's impossible to play the mpeg files on a computer. Why? cdifan explained the audio part as follows: "There's two parts to the conversion: 1. Convert from RTF to "raw" ADPCM data. IsoBuster should be able to do this for you. 2. Convert ADPCM to AIFF or something. If you can find it, something called the "Audio Conversion Utilities" should be able to do it. I think it used to be part of "MediaStockroom" or something which can be downloaded from the ICDIA site, I think. If the RTF files in fact contain MPEG, you should be able to extract them with IsoBuster just fine. But I think these are relatively "old" titles and they probably use slideshows and their own "DYUV partial motion" format; it would be hard to convert this without investigating the specific RTF files in detail. If CD-i Emulator provided an "automatic playback capture" (which is planned but barely even started) you could use that..."