• Hey, guest user. Hope you're enjoying NeoGAF! Have you considered registering for an account? Come join us and add your take to the daily discourse.

Mega Drive composite video looks awful! - faulty MD?

Hello Gaf. I recently purchased a model 1 VA6.5 Mega Drive which I'm super pleased about, been trying to get one for a while to mod for 50/60hz and region free switching.

I bought this composite cable from Amazon, thinking the video would mildly blurry but also 'how it should be' with the dithering (video at bottom of post).

But for some reason, the image is really strange with these arrow shaped artefacts all over the place and jittering during motion:

XCK1yN9.jpeg


Is this normal? Honestly while the RF signal is horrible it's actually better to look at than this imo, especially in motion. Through composite the colours are amazing and the sound is top notch, I just thought the overall video would be a bit blurry which is good for graphics that use dithering.

Before anyone says 'RGB bro', the reason I wanted to get original hardware was to avoid RGB/pure video feed which you can just do on emulation anyway. I just want to know if anyone else has experienced this or if it's just how it is. I was thinking maybe the cable could be the issue, but then I don't know which other one to buy instead?

 
Last edited:

cireza

Member
Is this normal?
Use RGB if you can. I would suspect something is wrong with the tiny pic you posted.

I have always played my MD on CRT through RGB so pixels have always been impeccable, I don't really understand why you would like to get the blur, with the few exceptions of games that use dithering (which sucks by the way), really not worth the poorer picture.
 
Last edited:

s_mirage

Member
MD composite quality can be pretty garbage, though that looks awful. Component ageing probably isn't helping.

Out of interest, is it using an original PSU or a replacement? The reason I ask is that my Super Famicom came with an absolutely garbage cheap Chinese PSU, and the video output looked horrendous while using it. I replaced it and the problem went away. Actually, I think I used my old Mega Drive PSU with it for a while and it was fine.
 
Last edited:

SScorpio

Member
It could be either the video cable or PSU. Without knowing if you are using original or a cheap garbage replacement, it's not possible to really pin point.

Also, as other already said, the composite on the MD is just plain bad. Even with original stock cables it looked bad on my Sony HD CRT, while an '86 NES with composite out was razor sharp and looked almost like running an emulator.

As for just get RGB, outside of the smaller number of cases using composite dithering, RGB will just give you a much better picture. If you aren't playing a game that needs the effect, you're just giving yourself a worse picture for no reason.
 
MD composite quality can be pretty garbage, though that looks awful. Component ageing probably isn't helping.

Out of interest, is it using an original PSU or a replacement? The reason I ask is that my Super Famicom came with an absolutely garbage cheap Chinese PSU, and the video output looked horrendous while using it. I replaced it and the problem went away. Actually, I think I used my old Mega Drive PSU with it for a while and it was fine.

Using the original PSU. I did read about MD's having bad composite output (which I put down to it not being 'pure' like RGB), but I didn't think it would look this bad! I think recapping the MD is the way to go, and wouldn't be a bad thing anyway while modding. What gets me is the way the artefacts look like perfect arrows, I've never seen this before on real hardware 🤔 My saturn has really wobbly video, which I know is down to a bad internal PSU and caps.
 
It could be either the video cable or PSU. Without knowing if you are using original or a cheap garbage replacement, it's not possible to really pin point.

Also, as other already said, the composite on the MD is just plain bad. Even with original stock cables it looked bad on my Sony HD CRT, while an '86 NES with composite out was razor sharp and looked almost like running an emulator.

As for just get RGB, outside of the smaller number of cases using composite dithering, RGB will just give you a much better picture. If you aren't playing a game that needs the effect, you're just giving yourself a worse picture for no reason.

Using original PSU with the amazon bought composite cable.

I'm definitely in the minority here but I just think the games look better in their intended way over comp/rf (urgh) compared to the perfect pixel nature of RGB. I mean in the end I'll probably have to go with Scart/S-video because of how bad this MD is but if there's a way I can avoid that I will.

Also it's not true that only some games were designed with dithering in mind, if you look at nearly any game back then you can see how different the sprites look when comparing video outputs, and what the artist intended. Earth Worm Jim in the video I posted is the best example, especially the splash screen before the level starts. It literally changes the whole feel of the game.
 

keefged4

Member
Using original PSU with the amazon bought composite cable.

I'm definitely in the minority here but I just think the games look better in their intended way over comp/rf (urgh) compared to the perfect pixel nature of RGB. I mean in the end I'll probably have to go with Scart/S-video because of how bad this MD is but if there's a way I can avoid that I will.

Also it's not true that only some games were designed with dithering in mind, if you look at nearly any game back then you can see how different the sprites look when comparing video outputs, and what the artist intended. Earth Worm Jim in the video I posted is the best example, especially the splash screen before the level starts. It literally changes the whole feel of the game.
I get you, I prefer the comp/rf look for 16 bit game and under too.

I'd wager its the cable you are using from amazon.
 
You didn't mention what TV. Those look like sampling errors on a digital display.

Also, never, ever buy cables that have AV and s-video combined. They always share the same pins between the two signals, splitting the composite over the s-video, fucking up both signals.
 
Top Bottom