I have the beta version just downloaded. Windows 7 64b.
Blueray player with DVD finalised, written on a Panasonic recorder for recording TV.
DVD contained two films 4GB total.
It worked flawlessly.
Doing tests by copying DVD Video_ts folder to HDD and then converting to HDD.
Every alternate test gave a fatal error and closed. Restarting the prog worked next time.
The same happened when running DVD converting to HDD.
On checking running processes after 5 tests I found I had 5 mkv processes still running but the application was closed.
I am not concerned, the job gets done, but thought somebody would like to know as it is beta.
Any non large time consuming tests can be done if required.