If you prefer not to buy a DVD, you can purchase the digital download only. The digital download is MP4 format and is optimized for size and ease of download. They will be perfectly fine and enjoyable to watch on your computer. These files are not intended for "professional editing". They are designed for consumer archiving, sharing and viewing on your own computer. Please do not order if you plan to use this file for anything other than its intended purposes, refunds will not be given.