Ok, sorry for late response.. This is the data, it shows that it's at least 3h, but if i open it with WinMediaPlayer, it's just 10 minutes. GOM does the same thing. If i convert it to a mp3, it's same, it's just 10 minutes.
My file has almost 8gb, and it's been around 1-2h of recording. If i play it with audacity or windows media player, the file has only around 10 minutes. The smaller file, 2gb has around 35 minutes. Something wrong is going on here. Can i recover my data in any way? The format is wav.