Well, actually it has nothing to do with cracking.Tunebite software is on the market since 2004, if i recall correctly,it was not really esp made for 'cracking' nokia's files, works for converting a lot of other formats. It's been used by people who wanna enjoy their legally bought music on any of their devices, rather than be tied down to a couple of authorized devices.But among other similar apps that are on the market, Tunebite does it all legally, by re recording the already legally purchased files and does not in any way mess with the drm or crack it, so u should be on the safe side if u wanna use it.