Can I play videos downloaded to my (Mac) laptop on my TV through my ps3?

Impossible is nothing. But hard to do? Yes.
What you’re asking here is; streaming video from your Mac to your PS3.

Simple solution 1:
Why not cut out the Mac, copy the video to an external drive and plug it to your PS3?
The PS3 suports most video formats: MPEG-1, MPEG-2 (PS,TS), H.264/MEPG-4 AVC, MPEG-4 SP. And there are a lot of freeware converters out there.

Simple solution 2:
Get yourself a Apple Mini-DVI-to-video adapter, displays the Mac straight onto your tv.

The hard way
In order for your PS3 to locate files on your mac you would have to set up a netserver. Copy the video files to your server domain (being a certain place on your mac) and locate them trough your PS3 browser.

Yeah, I was thinking: couldn’t I just use a flashdrive? I believe it’s big enough, though it wouldn’t be able to hold much else. (That’s what she said.)

You can always use the flashdrive to transfer your video’s. You can copy them to the internal drive of the PS3. This way you can use your flashdrive for something else again.

@jax, I can’t find a converter that’s mac compatible. Any ideas?

And also you’re avatar is awesome :)

@monsoon:

Try iSquint. (free) It’s designed for the iPod and appleTV but the MP4 format works great on the PS3 and PSP. Especially if you use the appleTV settings.

Thanks, I’m a big Fan of Pixar/Wall-e!

Doesn’t support .rvmb :( Which is what my online lectures are in.

Also, Wall-e is awesome, I want to go see it again.

RealMedia Variable Bitrate (RMVB) is a variable bitrate extension of the RealMedia multimedia container format developed by RealNetworks. It’s not easy to find converters for it yet.

But there’s a apple clinic page that explains the process of converting RMVB files, screenshots and everything. It usues ffmpegX. The program is a bit tricky to install, but it will convert everything to anything.

Download Orb

http://www.orb.com/

Sorry ignore that there is no Mac version.
But it looks like there might be one day.

Aw, thanks though.