1. Make sure you are using the latest version of the Studio software. Launch Studio, then click on the Help pulldown menu and select software update. If you have an Internet connection Studio will check to see if there is a more current version of Studio on our website. If there is, you will be promted to download it. Download the patch, exit Studio and then double-click on the patch you download. It will then update you to the most current version of Studio.
2. Read the FAQ regarding dropped frames titled: Dropping frames in Studio. Most of the solutions in the FAQ will also address this problem.
Note if capturing via 1394 card. If you are capturing using Preview quality, try a different/lower Preview quality setting or try capturing at full DV quality.
Note if capturing from an analog source. Recapture your footage at lower datarate settings.