can ipad play files (wireless) from nas connected to my modem

I have got a NAS (network attached storage; harddrive) with music clips.
I also got Apple TV.
Currently I run all on a HP laptop (XP Pro) and can play music clips using Itunes
If I buy an Ipad, will I be able to run my video clip files (MP4) from my NAS, as an Ipad has only very limited internal memory / no hard drive.

iPad

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