Today I contacted Canon Customer Support to request the documentation of the CR2 RAW file format of my Canon 20D. Here is my request:

Hi,

I would like to obtain the documentation of the Canon CR2 RAW format in order to write a software to decode and convert the pictures I produce.

Thank you.

Hub

I encourage you, as a customer, to do the same, being Canon, Nikon or whoever else. The idea is that if they get numerous requests there may be a change.

Please, once done, post a comment here.

Thanks.

Update: Here are links to Canon customer support.

Or look for Customer Support, they all have some way to ask a question.