[LinuxBIOS] DOC vs CF

[Adam Talbot]

Can any one give me a quick run down and the Up/Downs of using a DOC or 
CF as the primary boot device in a Linux BIOS system. I know there are 
both based on nand technology, and I know that the CF is on the ATA 
bus... I know that both have a limited number of writes, but that is 
where i run out of info.  What else is there, why would some one use a 
CF or DOC over the other?
-Adam