Media Player for Playing Movies

[JZ*]

Hi All!
I have a problem with Media player continually switching back to the "small" media player screen while watching a movie. Today on a business flight, I used my stopwatch to see if this occurs on a regular interval...and yes, it occurs at approx 4 min 45 sec. this is a pain...is this a known issue, with a fix? I don't have Coreplayer (I do have Kinoma...but the video playback is so choppy and poor, I don't use it for that)...I really don't want to purchase CP unless this is the only option and would prefer to just use MP... so is there a fix for this issue?

I burn my DVDs with DVD cataylst, so the movies play skip free with MP. I appreciate any input to assist. Thaks in advance