I had two problems with the video recording on Sega Genesis games.

The first one is when I open a Sega Genesis game using Mednafen and click "Start" to start recording a video and I save it with a name, the game starts to lag. The game's screen looks laggy and the sound too. Also, the screen skips some scenes of the gameplay while I push the buttons. I also tried it pushing F8 and the same problem happens. I tested it with other different Sega Genesis games. I'm not sure what is the problem with this, it wasn't happening me before with my other videos.

The second one isn't really a problem, it is mostly a question. When I check my Sega Genesis videos using the Freemake Video Converter, they have a very wide screen. I mean, they don't have the normal screen size like when I play the game, they look like having it crushed. I saw other users' videos of this system having that screen size too. How do I change them to a standard screen size? Is there a way to fix this?

PS : Sorry if my English is bad but I speak Spanish.

8bitNESPlayer : if your screen gets laggy while recording or while playing a game,try to reset the game  till its smooth again. or, restart your pc.  that  is what i do when that happens to me. and it works just fine.(it depends on your internet if its  slow or not.) for your 2nd question:when i want to change my game screen to full size i just double click the screen on vizzed and it gets full size. i hope this can help you solve your problems and questions. take care.i speak spanish as well if you need need help in spanish. hasta luego

lumi007 : I'm not sure if it worked, the game keeps going slow but looks like the screen doesn't keep skipping scenes on the gameplay while I'm playing. Generally, sometimes the game freezes around 0.5 seconds. I'm not sure if my internet speed is slow or the Data Folder of my RGR Plugin doesn't have enough space for this. I didn't understand your answer to the another question. If you thought it was when I play the game, it happens me when I see my recorded video, not in the gameplay.

Anyways, thanks for your helpful reply, no one replied here. If you have any more suggestions, feel free to tell me.