Hello I have managed to set up a new solo 4k receiver running the latest version of black hole (3.0.4). Thanks to everyone who offered advice - you really helped. I attached and mounted a 2tb western digital elements usb drive for recording. Last night I made some test recordings. Everything seemed to go ok, the short recordings of about five minutes came out well. I thought I would see what the receiver was capable of, so I recorded six or seven high bitrate hd channels simultaneously. However when I went back to check after an hour the box appeared to have frozen, and onscreen there was an expanding blue circle inside a white circle. I am presuming the receiver crashed after about 20 minutes, as the recordings were all about that length. Could the problem be the hard drive - it does not have its own power source? Would it be better to get with its own power source? Or did I just push the receiver beyond its limits? Are there any things I can switch off safely to free up more resources for recording? Thanks for looking. Any advice gratefully accepted.