http://www.afterdawn.com/glossary/terms/vob.cfm http://www.afterdawn.com/glossary/terms/dvd.cfm http://www.afterdawn.com/glossary/terms/avi.cfm now you could have found this out by looking it up in the Glossary tab above on this page! when you capture from a video source it will convert to these formats, depending on your program and it's settings.