I think you’re mixing things up. “Special CDRs for music” are for burning AUDIO CDs, that you can play in audio CD players.
If you burn the audio FILES (.wav, .mp3…) by creating a DATA CD, there is no difference at all between these and “regular” CDRs.
Actually I think you’re wrong. While I don’t know what the original poster meant by special audio CDRs I suspect the poster meant “Consumer Audio”/SCMS CDRs (I didn’t actually know they still exist). While these discs may work better then average CDRs in CD players, CDRs have a variety of success rates in audio CD players depending on brand and type (reflective layer and dye). My experience is that compatibility nowadays especially is good with few problems.
However as I’ve said, the primary purpose of consumer audio CDRs is not to do with their compatibility with audio CD players nor their longetivity for that matter. They can be used with consumer level stand alone audio CD recorders. Consumer level stand alone audio CD recorders never really caught on but the idea was everyone who was burning audio was effectively pirating, (even if this is a silly assumption) so the manufacturer pays a fee to the recording industry for each disc and in exchange, they produce these special discs which consumer level stand alone audio recorders can use. These devices are not allowed to use normal CDRs.
Since they are intended for stand alone recorders, they tended to be optimised for low speed recording but I don’t know if this is still the case.
Also, as others have said, if you’re storing audio for archival purposes, DO NOT BURN THEM AS AUDIO CDs. Store them as wav files or whatever on a data CD (preferbly mode 1 IMHO, in theory mode 1 or mode 2 form 1 shouldn’t matter but my experience is mode 2 form 1 can be more problematic with some software and drivers when it comes to recovery). For even greater chance of data recovery, you might want to include some parity (PAR2) files but this won’t help you if the directory tree or whatever becomes damaged and the disc becomes unrecognisable.
Although I agree, when it comes to consumer level optical media, DVD-RAM appears to be your best bet at the moment