HB changed the recording format in version 6.600...
Humviewer (or any other 3rd party viewer program) will hopefully eventually make changes to their individual viewer programs to allow the HB recordings to work...
I think I read that "SonarTRX" has made changes to allow the 6.600 version recordings to work but I haven't heard if any of the others have yet...
Remember, HB has no affiliation with any of the 3rd party viewer programs so HB can make changes to their own proprietary stuff any time they deem necessary...
I'm currently running 6.600 on my 1197 for the simple fact that 6.600 is necessary to run the new AS GPS HS antenna...so I will still be keeping my old version of software with my unit in case I want to revert the software so that I can make a recording of interesting stuff...
Rickie