I did it!!! At first I tried copying it using dd, unfortunately it is very slow since I used bs=1 One of the core usage went up to 100% and after a while my cpu temperature is 72 degC. So I stopped it. And then I wrote a simple python script to read the file skipping the first 112 bytes and copying it to a new file. After that using sox I converted it to w64. Now I'm able to open the full file. Hurray. Thank you very much for all of your help. I wouldn't have a clue what to do without your help. Shani H Pribadi