Yesterday I've merged the 16 bit and 24 bit versions of the program into a single version/registration.
The differentiation does make much less sense now as it did in version 1.x as many consumer soundcards today are 24 bits, while a few years ago the only soundcards that had 24 bits capability were pro or semi-pro models and costed hundreds of dollars. The new price is $64 and is slighly less than the average between the two old prices ($54 and $79), although it is an actual small price increase given that the average of the prices weighted by the ratio of copies of the 16 and 24 bit versions sold was a little below $64. The price increase only marginally offsets the seemingly unstoppable decline in US$ versus the Euro (some 60% since 2000!), which is the currency in which I have to pay my bills. When Italy had its own currency (the 'lira') the fact that the US$ would always be worth more was almost a given, with the Euro that is painfully no longer so.