When a trainer RAR is corrupt is it an issue with the downloaded file or is it something on my end?
If you are using AV like Avast you have to turn of real-time shield. trainers set off a false positive as they are detected as a hack tool. I had that problem with Avast and that was my solution. also if you are scanning with an AV you need to set the CH trainers as exceptions or the AV program will delete them.