Thanks Gerry. I understand that if I have a WWII army file opened I can have it made accessible on-line for a fee. I think I paid about $19 per file a year or so ago, but when I rang NAA today to check the fee they said at the beginning of the year it went up to $75 per file! And apparently they don't offer hard copies any more, just digitisation (for $75) to be accessed online. Apparently the increased fee is to cover costs.
Cheers,
Jestina