Actual maximum size for a memcache stored item

[Wes Gamble]

All,

In my testing, I've discovered that a stored item in memcache can't be 
exactly 1MB (1048576 bytes) - it needs to be a little smaller. 
I've successfully stored items that were 1048510 bytes long but not 
successfully stored items that were 1048520 bytes long.

Does anyone know what the overhead is to store items in the memcache? 

Thanks,
Wes