Pelo911,
the DAC is not your problem. Your cables have good reputation
If you are using a generic off the shelf, un-optimized PC then your sound will be incredibly mediocre for digital playback
Options
1) if computer savvy do the reading on computer audiophile site on how to build an optimized media server and follow through
2) if not your cup of tea buy an already built media server a la CAPS models
this will insure that you have mitigated to a high degree the multitasking contention and electrical noisiness of a commercial PC that holds you back from the better than CD/DVD performance you can get from a media PC via asynch USB to your Oppo player
the DAC is not your problem. Your cables have good reputation
If you are using a generic off the shelf, un-optimized PC then your sound will be incredibly mediocre for digital playback
Options
1) if computer savvy do the reading on computer audiophile site on how to build an optimized media server and follow through
2) if not your cup of tea buy an already built media server a la CAPS models
this will insure that you have mitigated to a high degree the multitasking contention and electrical noisiness of a commercial PC that holds you back from the better than CD/DVD performance you can get from a media PC via asynch USB to your Oppo player