I have a Dvd player connected to an amp, what things do I need to attach my pc to the amp.

I only have a built in card what soundcard would you suggest for best quality achievement.

Really depends what you are after. I guess it would really help if you would post a bit more information.

First of all how much you would like to spend and wether you need multichannel support, play a lot of games, etc.

Play music through pc without looses when transfered to the amp thats all i'm after.

If your amp has regular RCA inputs I would recommend a standard mini jack to RCA Y-adapter. Probably less than $10 at your local audio store.

Will i achieve max quality like this.

Does your amp support digital input (coaxial or optical)?

both

What kind of music files will you be playing from your computer? If you're playing mp3's then going trough a digital line is overkill. MP3's are faily low fidelity and running them trough a regular analog connection such as the RCA input on your reciever will be more then adequate.

If your going to use it for playing DTS or Dolby Digital surround audio, then the optical or digital line is what you will need.

Both I want to play.

Unless your motherboard has digital out I would suggest a cheap Soundblaster Audigy 2 with Digital Out (some of them have it, some require an extra box.) The extra breakout box is actually the better option.

Reasons:

+Audigy2 has proven to be the least demanding of your cpu while playing games.

+If you want to use an analogue setup and use the Audigys effects processor you can.

+Connecting to your amp via Digital (toslink/coax) will give you 2 channel stereo for mp3/wav and SPDIF for DVD/dts/ac3.

Well, Audio Vox, it seems that info from this thread were not sufficient.

If you want to use hardware effects or format not handled by your amp on its digital input (eg AAC), you will have to use analog connections. You can get very good quality without having to spend a lot.

BUT (and I encountered this issue), you can get very annoying issues due to ground loops. I wont explain here, just try google. The bottomline for me was to use an external device on firewire with its own power.

The other thread was simply ment for audio playback never mentioned any digital connections.

Why can't I have a digital connection between my amp and stereo?

I'm a little confused by this discussion. Let's say Audio Vox decided to use an audio player like foobar2000 on his computer. Why couldn't he use the digital output when playing an AAC file? I didn't think there were any issues with doing something like that. Would he need to alter the bit-depth first or perhaps the sampling rate? Maybe I don't understand what he's trying to do, it is pretty late.

Simply play digital files through a digital connection.