The educational discount is 90% off the list price, rounded down. Specifically, educational pricing is $14 instead of $149 for one SheerVideo Pro license, $9 instead of $99 each for multiple licenses; $17 instead of $179 for a single SheerVideo Pro for Mac Universal Binary key-pair, and $11 instead of $119 each for multiple UB key-pairs.
Quite a nice alternative to other lossless codecs. File sizes are comparable to Lagarith, IIRC, except Sheer files play back REAL-TIME on my 800mhz Pentium 3 which is who knows how old...a feat Lagarith/HuffyYuv certainly can't accomplish...

