This is software helps split as well as join audio and video clips.
WM Splitter is an audio and video clip splitter and joiner. You will be able to split one clip into many and join many clips into create one. Simply load a video or audio file into the program and place markers along the timeline. Then pass a command to cut them to pieces or put them together. Marking the cutting or the splicing points could be very precise. There are several ways you could navigate to the point of interest. This could be frame-by-frame, time based and even K-Frames (new camera shots) based. Once you have finished marking the section you simply click "trim" and the trimmed clip is saved in the same directory hosting the source file. This tool provides you a way to clean up your files. You will be able to remove the ads and silence zones on audio files with this tool.
AVI, WMV, ASF, WMA and MP3 are the formats it can handle easily. For other formats the process would be to convert the source files to these formats first and then get them sliced and diced. Time markers could be precise to a hundredth of a second. This has a simple and easy to use interface. It is intuitive enough that most users should get familiar with it quite easily. Getting productive with it should not take much time. The preview player is quite easy to use and very handy. This is a good product. It has many useful features. If you were looking for a product like this, this is one you could try out.