ROM Hack How to compress DS roms?

[~Wiiloader~]

I have R4-III card (clone) and 1GB micro SD

Now, i want to put some DS roms on micro SD but some roms like Phantasy star zero, Lets yoga, Resident Evil DS and some others are roms that have over 100MB.
Is there some way that i can compress (shrink) DS rom size so i can put more roms on my 1GB micro SD?

Big thanks in advance

 

[tk_saturn]

You can't compress them, you can only trim them. Popular trimmers are NDSTokyoTrim and TinyTrimmer.

 

[DigitalDeviant]

use NDS Tokyotrim link

 

[basher11]

there was a topic that FAST6191 started on a forum (i forgot) that you can make a rom smaller by deleting unnecessary files, such as separate languages and sound.

 

[Phazon13]

There is another easy thing like rom trimmer: just buy a bigger micro sd. they're not so expensive..

 

[ShinRyouma]

Buying bigger micro sd or not, using NDSTokyoTrim or TinyTrimmer is very useful. I use TinyTrimmer.