Has Anyone Ever Owned/Played DVD9s?

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kyphysics
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Most DVDs are DVD5s. Some - less common are DVD9s.

I'm thinking of buying foreign language film that is a DVD9, but am not sure if it'd play on a normal DVD player.

I've seen conflicting answers online. Some say they can always be played on regular DVD players, while others say you have to put in in our computer drive to play it...

Figured people here were more reputable and I could get a closer-to-truth answer. Thanks in advance!
 
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The difference is in the number of layers on the DVD. Single layer is lower cost, used by DVD-5, while double layer is used by DVD-9.
https://en.wikipedia.org/wiki/DVD#Capacity

I expect if your drive can handle DVD-2 or 3 it should be able to read DVD-9.
But there is always the question of how old is your DVD player, and what formats does it support. Look up the player specifications on the web.
 
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I thought that dual layer DVDs were part of the format from the start and everything was required to play them. My PS2 had no problems with Dual layer DVD+R that held 8.5 GB

Perhaps you are thinking of region encoding? That is a different subject entirely. The US is region 1 and Japan is 2, I think? Region 5 would be Africa.