It has the same volume either way.
The real deciding factor is where/how you have space. If you're sticking it on a shelf that's 2 feet wide and 6 inches tall, horizontal is the obvious choice. Or if you're putting it in the space below the TV screen where it's just keeping you from viewing the stand.
don't eve play Diner Dash. My mom has her own DS and plays Diner Dash. I put a screen protector on it and asked if I could play it in a car ride once and was like woah what happened here? There was a plethora of deep scratches on the bottom screen. I just wanted to cry.
No word could describe the amount like plethora. Perhaps myriad could.
I'm assuming you're playing it on a flash cart, since I've had conversations with you before about having too many games and never finishing any of them. But I suppose there's the chance that you're playing it in Japanese or something.
If you have a moment, and you have a file that would work with an E or U version, would me mind sharing your save with me? You're pretty close to where I was, and redoing just a little bit is much more tolerable than starting the whole game over. And I can't think of anything that would be specific to a player like characters names, and all the decisions are reversible through time travel.
Sometimes my boyfriend asks me where a particular game is on the shelf. You should have noticed by now they're in alphabetical order.
And it's lovely to open up a box and see the disc sitting there with the art and title perfectly straight. And oh my god don't put my GTA disc in your stupid wrestling game box!
/rant
Gummy Bear of Candycornia.