Now the Korean authorities are saying that the CVR and DFDR stopped 4 minutes before the crash. Very odd what is going on.
Also is there anything in the public domain about the pilots? How many hours they have on the type and if it is a crew that joined in BKK or was a crew doing the return leg too? I am of the opinion that a country's safety record is good as long as the airlines SMS and the authority's oversight functions are top class. If one fails then the other fails too.