It is of course acceptable, even to the RIAA, to make MPEG copies of your CDs (ripping, as it's known) for your own use.
They have recently made examples of four students in the US, each of whom will be paying the RIAA an average $15,000 for placing an MPEG search facility on their school's web site.
These kids were not offering pirate music, just a MPEG orientated search engine!
Methoxypolyethylene glycol (mPEG) derivatives (mPEG-C[H.sub.2]-C[H.sub.2]-CO-N-hydroxysuccinimide and mPEG-O-CO-hydroxybenzotriazole esters) were obtained from Shearwater Polymers.
Coupling of mPEG derivatives was performed by dissolving substrate to a concentration of ~100 mmol/L in 2 mL of dimethylformamide containing 100 g/L N-ethylmorpholine and adding 0.5-1.0 molar-equivalent of mPEG active ester.