My replays are saving in a random extension its not saving .yrp

what is the file extension your game is saving them as?

just File and it has 0 bytes

take a picture of the directory and extension please

just take a screen shot of it please, no need for a sendspace file.

So the problem is that the file has no content at all, which makes me think your YGOPro can't write any file. I see, however, that some replays did save correctly, so have you changed anything (even if not YGOPro related) since then?

Have you tryed to rename it to (actual name).yrp , I know it is kinda retarded but sometimes works lol.

Also, If your YGOPro folder is on the Program Files and you are using Windows 7/Vista/8(maybe?), you may need to start the launcher/percy as administrator, otherwise it may not let you make changes on the Program Files folder, it is, like adding a replay file correctly.

Since they have 0kb it is mostly like the file is just a blank file anyway, there is just... a lot of things that could be blocking you of saving files, Firewall, Admin Permissions, Anti-Virus recognizing it as a "unknow" format.

In any case a re-install is aways a good option too, you could just backup your Decks and Replay folders and you won't lose anything.

However, good luck with that.

it seems you must have changed something in the YGO directory to make it not save them as .yrp's.

Best bet is to reinstall.