These are just bricks. You can try a factory reset and be sure the firmware is current as well as be sure the media is clean. That is, no fingerprints or scratches.
There are no controls for us to tinker with for memory use, etc.
Hi! So, I have recently bough myself a used BD-F5100. I was really excited and it works well for regular DVDs. But when I try to play video files from USB or from DVDs burnt by me (at 8x or 10x usually) it freezes randomly and the controls are all useless - can't pause, can't stop, can't press anything. I just have to unplug it. This doesn't happen all the time, just sometimes, but it can get very annoying when it does. What I have also noticed is that if I have enough patience to wait for the player to get back to the menu (the player menu), it will all be painfully slow and laggy. I suspect it has something to do with memory usage. Any help?

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