Q: Is SDAL Format an open standard?

A: Yes. The technical specification of SDAL Format is now publicly available for review. Interested parties can register online to request a copy. If manufacturers wish to implement the SDAL Format PSF Specification, they will be able to do so royalty-free.

from q&a www.sdalformat.com

I´m afraid, but no, it doesn´t. Implementing a format specification and releasing it under - let´s say - the GPL is a different pair of shoes. Releasing the code or even sharing the necessary information between independed programmers is - as I see it - breaking the license one has to sign to get the specs. Read them carefully. Then think about what releasing the code open sourced would mean regarding those license rules.
However, I´m still going to get those specs. If not for anything else than to get an idea of how such data might get stored and to implement a (non-opensourced) converter to our own format.

cu,
sven
(MkII 12GB blue, #080000113)