Ear pads for the ATH-M20x?

Hello!

I've had these headphones for a really long time now but it's really uncomfortable (see attached image).

I've seen a lot of people recommend the replacement ear pads from Brainwavz, saying that it makes the headphones way more comfortable. But a lot of people are also saying that it changes the sound in a negative way. Now I'm not really an audiophile but I'd prefer if I could avoid altering the sound by a lot while making the headphones more comfortable.

Someone also suggested the Shure SRH840A pads, which would be preferable since I could get it locally, but I'm not sure whether it fits on the ATH-M20x, since the seller's website says that it's only compatible with that model of headphones.

Which ear pad should I buy?