Can Nintendo DS Lite Play MP3s? No (But DSi Can)

No. The DS Lite lacks MP3 playback. It only supports:

• DSiWare music (purchased on DSi Shop, plays on DSi/3DS only).
• DSi Sound recordings (recorded on DSi/3DS).

Workarounds for DS Lite

• Homebrew (Moonshell, Tuna-viDS) – Requires flash cart (R4, Acekard) + microSD. Plays MP3/OGG from SD. Unauthorized, piracy-adjacent.
• GBA MP3 Player cartridges (e.g., Play-Yan, M3) – Slot-2, hardware decoder. Rare, expensive.

Better Option

Buy a Nintendo DSi / 3DS / 2DS – native Nintendo 3DS Sound app plays MP3/AAC/M4A from SD card. Or use a phone/cheap MP3 player.