“Log.txt" file does not contain any useful data this time because you trimmed it.
Since recording failure was the issue, I would suggest you doing the following:
1. Restart MC.
2. Test playing the channel that you had issue with. For example, yesterday you got recording failure on channel 4+1. You can just try playing that channel and see if you can watch the channel live.
3. If you can watch the channel, stop watching it, and try record it. Recording should start in a few seconds.
If either step 2 or step 3 fails, go to Help > Logging..., and click "Report problem". MC will create a zip file that will contain three files "Log.txt", "Previous Log.txt", and "System Info.txt". Post the entire zipped package. If the file is too large for forum attachment, email it to me. I am yaobing at jriver dot com
If you did not get any failure above, then schedule a show that is to start today, maybe the one that you normally would want to record. Restart MC and leave it on for recording the show. Come back to check whether recording succeeded when the show is supposed to be started. If recording failed to start, go to Help > Logging... and collect the zip package by clicking "Report problem". Email me the package.
Here are some general ideas about failures like this:
Is the channel DRM'ed? MC does not support channels that is encrypted/scrambled.
Is the tuner being used by other application? A tuner can only be used by one application at any instance.