Originally Posted by joe123j
Yes. My understanding (correct me if I am wrong) is that the recorded video on your TiVo has to be encrypted in order to send it to your PC. The encryption is what makes the transfer soooooo pathetically SLOW.
I played with TiVoToGo transfering a high quality image from TiVo to my PC while TiVo was recording another show and the transfer speed was extremly slow.
I believe you are mistaken. As far as I know the TiVO encrypts the video when it records it. When you transfer it TiVO just adds the MAK so it can be decrypted on the PC.
The real problem is that video files are made up of streams. At least a video stream, and if the video has sound an audio stream. You could also have subpicture streams i.e. subtitles.
The TiVo records the video and audio in separate streams (think two files). When it is time to play the video the TiVO loads and plays both streams.
When you transfer to another TiVO both streams are sent and stored on the other TiVo as two streams (you can send two files at once over a network).
When you send to a PC you want one file, so the TiVO must MUX (combine the two streams into one file) the video and audio together into a container file format (the .tivo files are containers. they contain the two streams). It's this muxxing process that slows things down.
At least that's how I believe it works.