Tracks shorter when exported

Hi guys,

I’m exporting a track from CA 7 that’s designed to loop. The loop works perfectly when inside CA. When I export the track and playback through winamp, quicktime, windows media player etc. I get a slight break.

I decided to pull the exported file back into CA and check the length. For all mp3s the file is a little longer. For all wavs a little shorter. For all oggs, the right length but with noise at the start and end (miliseconds).

In all cases, it’s stopping the file from looping smoothly.

I have checked my sample rate (44100) but am unsure what else could be producing this effect.

Help much appreciated!