cb56,

I forgot to tell you in my first post but welcome to the forum! There is no way to determine which MP3 encoder installed on your computer Band-in-a-Box is using for the MP3 render. As Mark stated if the MP3 encoder gives you choices a constant bit rate is normally better than a variable bit rate. Also, if the choice is offered, the size setting makes a HUGE difference with most people preferring 192 or 320.

One other thought, if your tablet media player accepts wma audio files they typically offer smaller file size with better sound quality as compared to MP3.

But, if it was me, I'd stick with wave audio files if possible. Wave is a lossless file format so no audio information is lost. MP3 and WMA are lossy, compressed files which means some audio information is thrown out to reduce the size of an audio file.

An audio stretched wave file means the file data had been adjusted to match tempo, pitch or key signature. In your case that likely means the audio data of a RealTrack has been adjusted to match the chord sheet settings.

Jim Fogle - 2025 BiaB (Build 1128) RB (Build 5) - Ultra+ PAK
DAWs: Cakewalk by BandLab (CbB) - Standalone: Zoom MRS-8
Laptop: i3 Win 10, 8GB ram 500GB HDD
Desktop: i7 Win 11, 12GB ram 256GB SSD, 4 TB HDD
Music at: https://fogle622.wix.com/fogle622-audio-home