It played no problem (smoothly etc.), but without audio (she had it muted).
The beauty wanted to replay the clip with audio and found it a bit confusing to un-mute things and turn the volume up.
She was able to use the Fn key to unmute the volume (as she would have on her Acer laptop) but the lack of on-screen feedback was irritating to her (Acers have a nice lime green OSD that shows mute/unmute and volume level). When she unmuted it, or thought she had (she indeed had) she couldn’t understand why she couldn’t hear anything (the audio level was about 10%).