Hello Hans.

To be honest: No, I haven´t checked the navtech docs yet (didn´t find the time to go through all that legal stuff I tend to read before I click "I agree"). But I did get some sample data in that format (or at least the person who sent the data to me said it was), and had a (very) brief look at it today. As far as I can see, the whole database is kept as a plain text file. Though this might be great for editing and human reading, it certainly ain´t no good for use on the empeg, mainly because of tightness of memory, but also for speed reasons.
Just some quick thoughts though.

cu,
sven
(MkII 12GB blue, #080000113)
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proud owner of MkII 40GB & MkIIa 60GB both lit by God and HiJacked by Lord