MVI Video Converter
If you have no choice to convert mvi files to play on, then you can try this Canon MVI converter which can convert mvi/mov video to one format be played on any devices and editing programs.
MVI files are actually Motion-JPEG/H.264 encoded video with .AVI or .MOV as file extension. The SD MVI videos shooting at 640x480 end up as .avi files and HD MVI files at 1280x720 or full HD 1920x1080 .mov files.
The recording Canon MVI is actually certain type of AVI format. But this MVI movie files is not supported by Pinnacle Studio and Windows Movie Maker on Windows OS or iMovie, FCE, FCP on Mac, also can't be incompatible with devices like iPad, iPhone, PS4, etc. To make Canon MVI Movie clips playable on your PC, you need to convert mvi to an accept format such as AVI, WMV, MOV, MP4, FLV, MPEG, DVD, etc.
Software Free download
Download MVI Converter 
Guide of How to transcode mvi files :
1. install mvi converter and simply drag mvi file to it.
2. select an output format
3. do some editings : cropping, trimming, watermarking, flipping, and more.
4. Convert.
After conversion, you could get the converted MVI files in your wanted video format from its default output folder. Thus you could watch them on your computer. Or, you can transfer and play them on your portable devices, such as Galaxy S series, Galaxy NOTE/Tab, Motorola Xoom, Apple TV, PS4, Wii, BlackBerry PlayBook and more.
Canon MVI Converter supports converting all kinds of MVI files whatever the MVI files are from MVI DVDs or recorded from Canon Powershot A70, EOS 5D Mark II, IXUS 130, Power Shot SX 200IS, PowerShot S95/90/60, IXUS 1000 HS, PowerShot Elph 500 HS, PowerShot SX 200IS, PowerShot SD 780IS.