[streamdumper]

I thought I'd also give a recommendation for KCSoftware's VideoInspector utility. It's a freeware utility that can verify the completeness of AVI, MKV, MPEG1/2 and QT files. So, basically using VideoInspector in combination with this script of mine (for FLV and MP4 files) will pretty much cover all the relevant video formats.

Once installed, just select Extra Tools -> Batch Mode, click on Add Files to add all the files that you want to check and read the results on the "Complete" column. There's also an export to file option available as well for logging the results for later reference.

Just a word of warning, though, to those allergic to adware. You need to uncheck a number of pre-selected boxes for browser toolbar/homepage settings during the installation process. Also, you might want to uncheck and decline to participate in the "anonymous user statistics" participation, which is also pre-selected. Apart from these installation caveats, the program is 100% clean and free to use (if downloaded from their web page).