If the MKV plays but audio is delayed, you don't need to repair the file permanently – just adjust on the fly:
Below is an in-depth guide on how to fix common MKV movie issues using free tools and simple system adjustments. 1. Why MKV Movies Fail to Play mkv com movies fixed
"Fixing" a pirated movie does not make its distribution legal. However, the repair techniques described above apply equally to your legally owned MKV files (e.g., home videos, personal backups, or public domain films). If the MKV plays but audio is delayed,