MiSTer FPGA Forum

Thanks, I'll give that a try.

I appreciate your detailed response and I figured out what is going on. I do have an MK2 btw. After running the command listed I got a "No such file or directory" so ran "ls -l" command and noticed my UM-ONE was listed under /dev/midi2 (not midi1). My UM-ONE is connected to a USB switching hub along with keyboard and mouse (conn...

I have a Roland UM-One paired with a MT-32 which previously worked great with MiSTer but now is no longer functioning. It's been a while since I used it last but I am pretty sure I selected USB from the Midilink option under "UART mode (MIDI)" menu. Now USB is not longer an option, with only UDP, Fsynth and MUNT being options. I tried UDP...

I would think that read speed is more than sufficient. Real Sega CD hardware read speed is a tiny fraction of that. Well under 1MB per second so it's impossible the read speed of your SD card is to blame.

I've experienced the same issue with Ecco with the Mega CD core. Like you I tried switching audio output from HDMI, to analog to toslink and it was the same on all three sources. Unfortunately I don't have anything else to add, other than confirm your issue.