I just received the QAM updated firmware from Mediasonic and believe I updated the firmware correctly, but I don't see any choice to select Air or Cable. Can anyone tell me what screen this should be on?
There should be a "Signal Type" option under the Channel Search menu, just above "Modulation."
If it's not there, either your firmware update didn't "take" or the updated firmware isn't QAM enabled. You can check your firmware version with the "Information" option under the System menu. The SW version should contain "QAM."
This is why always using mod16 is a good idea. Not all hardware players understand H.264's autocropping convention.
Confirmed! With modulus set to 16, Knight Rider crops to 544x480 instead of 540x480. 544 is divisible by 16 and the file plays correctly on the Homeworx. Only drawback is the file's slightly larger (since 4 fewer pixels were cropped), but it's still significantly smaller than the original.
Edit: Well, I spoke too soon. I re-transcoded a bunch of videos today with modulus set to 16. This fixed most of them, but even though this gave them all standard dimensions, a few still wouldn't play correctly on the HW! The troublesome videos were ones that defaulted to cropping both horizontally and vertically. To get those to play correctly, I had to resort to turning off cropping completely, which is rather inconvenient on Handbrake (you have to select "Custom" then manually enter 0's for all four cropping values).