TMPGEnc error message

I have isn't Basic x64 and TMPGEnc Authoring Works 4.0.6.28 It has worked flawless for me for the last few months, until now. All of a sudden after I set up my options in "Output" which included having the writer settings at maximum, when I click start, it runs for a few seconds then I get an error message that says "Access is denied (error code 0x80070005)"

Luckily I poked around and discovered that, by setting my writer settings from Maximum to 16, that it would work, but lately even doing that gets an error message, but I've found that by hitting start again everything works fine and my burn gets done. Still I get those initial error message every time.

I don't know why this is happening now after all of these months. I haven't changed anything in Windows that I think would affect DVD burning. I did Google this and may people say the error means that the files are in use by another program, but I don't see how that could be it.

I have had both Nero and Ashampoo burning software installed for awhile too along with TMPGEnc but they used to work fine together. By the way this also happened when I was using version 4.02.14.