I'm using DB Poweramp for ripping on a PC now, and the bitperfect feature is reassuring. I have already ripped my entire library on lesser software and going back to re-rip some due to some found errors. I was troubleshooting what I was hearing as a gap in the music upon playback and it actually came down to the VLC player software on the Macbook, and not a problem with the rip. The same music CD ripped on two different softwares were exhibiting the gap/pop and it was consistently at the same exact timing spot on the recording when playing in VLC Player, but a different timing spot on rip versions depending on what software ripped the song. In the end, the rips were all good, but there was something left in the original rips that VLC player had issues with, even though it's all ones and zeros! Now using different player software(s) there is no issue with the rips/recordings at all. I was surprised that the error was in playback software. That said, DB Poweramp seems to be a great rip solution even with the free version.