I'm sorry to be simple. english is not my mother language|
I have Humax Receiver. it called IR2020. It's like HUMAX HDR-FOX T2 with a simple differences
I recorded to channel, one was encrypted and the other one was unencrypted.
I try to decrypt it with HEX editor. and I found one byte in 0x0000028E. for encrypted  and for unencrypted . But when I Change it, enc flag disappear and video don't work
This is a link for the file
Please Help Me.