Keep the useful picture size
An AVI container can hold different video codecs. Converting to an MP4 with H.264 creates a more consistent output. Start with the original dimensions; making a small video larger usually adds file size without recovering detail.
Convert one AVI or a queue of clips
- Drag your AVI files into OneClick Video Switch, or choose Add Media and Add video.
- Select MP4 in the format panel. Check the output format and size shown for the queued files.
- For clips that need a shorter beginning or ending, open Edit, choose Trim and save the changes. Leave the other clips at their full duration.
- Keep each wanted item checked. Leave Merge files off when you want an individual MP4 for every AVI.
- Set the destination with Save to, then click Convert. Open the results and check playback, sound and duration.
Balance size and clarity
If an MP4 is too large for its destination, reduce the video bitrate or output dimensions and compare a short sample. Higher bitrate generally leaves more room for image detail but produces a larger file. Conversion cannot repair frames missing from a damaged AVI, so keep the original until you have checked the result.