I have noticed a weird and annoying phenomenon with DOSbox 0.62. Although the sound produced by DOSbox sounds the same as in 0.61, when you try to rip it to a WAV file with Ctrl-F6, 0.62 rips it with too little amplitude (softer) and seems to insert some noise into the rip. As an example, here are two rips from the same game, using 0.61 and 0.62 (converted by MP3s to make smaller but you can still tell the difference):
http://www.game-point.net/misc/dosbox0.61.mp3
http://www.game-point.net/misc/dosbox0.62.mp3

As far as I could tell, the prefs file for both versions was as close to identical as they could be. Why is this happening? I suggest reverting whatever ripping code was changed back to that of 0.61!