This is still happening, video stops downloading at 75%, pausing and restarting will finish the download.
VSO Downloader 184.108.40.206 - Windows 7 64bit Professional, 12 gig of ram, terabytes of hard drive space. Realtek Gigabit Network Card.
Changing settings in Download Settings does nothing. Monitoring the down load just shows the speed drop to zero, VSO Downloader does not time out,
it just waits.
Interesting enough, some sites will download files with out stopping, other sites fail at 75%.