This is totally true, it's down to the dye in copied discs not working well with the optical pickups, causing them to work & spin constantly which ultimately exhausts them and causes accelerated wear. Particularly the case with the pre facelift accord v2.xx systems. the v3.xx systems seem less effected but i still wouldn't recommend it.
If you try a copied disc you'll hear a difference in how hard the drive is working and notice the extended time it takes for the ok button to appear after the warning message.
also need to be mindful of a certain ebay seller (nav-update) who is selling copied discs that look like the real thing, they're not. their discs behave exactly as copied discs do. They couldn't confirm the authenticity of their discs and they refunded me immediately when i probed about it.