Someone on here was asking about the ILDA file format so I emailed ILDA to ask about it. Here is the response:
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This document is available to ILDA Members in our Members-Only area. The latest version is Rev. 4.1, dated June 2006 (not a very big change from the previous version…)
For non-members, there is a charge of $25. This can be done via credit card or PayPal. There is an online page where you can make payment, at https://xlaserist.merchantquest.net/secure_payment.htm.
Hope this helps; if you need any more info, please write.
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I'm not a member but I wouldn't mind taking a look at it. I'm not going to pay $25 for it, though. That's silly.