I remember long time ago (1993) there was a compression program that had the feature of adding a special checksum which was 2-5% of the size of the file and then could restore a rather significan number of missing or corrupt segments.
I remember personally zeroing out 100 disk sectors of a file and the checksumming algorithm restored them without trouble, and the checksum size was half that. I'm not talking about basic Hemming code here of course, and even though they claimed it to be some sort of interleaved XOR checksumming I'm sure it must have been something more complex. If there is interest from the developers I can research the topic further. __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com _______________________________________________ Devl mailing list Devl at freenetproject.org http://lists.freenetproject.org/mailman/listinfo/devl
