Sorry to hear about your right ear Charlee, I hope it clears up!
It's a relief to hear the audio is okay. I finally figured out that I could wear an iPhone headset plugged into an iPod Nano to record the sound separately at a decent volume. My other gripe about instructional videos is that the sound is often too low, so I crank my speakers up all the way--then I'll suddenly get a SUPER LOUD e-mail alert and almost spit my coffee out.