Blue Velvet said:
However, what I want to know is why things weren't properly mastered in the first place.
It's not that the old material was mastered badly, but rather that the "70's and 80's standard" of listening to music was very different compared to the "90's and today's standard". It's more like transferring old music from analog to digital in a different way than before, allowing the original material to change a little during the transfer.
Mostly the only gripe about the old material is that it isn't AS LOUD as today's material, but with analog media it didn't matter so much. When that material was transferred to digital media untouched, then what happened was a lot of digital quality was being wasted; however, not all not-as-loud-as-today records actually waste bits, as the first bit is wasted only when the top 6dB from the full scale are not being used ever. If some of that top 6dBFS is used somewhere in the album, then it becomes subjective: it's a matter of dynamics, and today we have used to expect less dynamic music (about 12-14dB of dynamics, or less god forbid) compared to about 20dB that the oldies and today's movie soundtracks are mixed. The difference between a 14dB bubblegum-pop mix and a 20dB dynamic movie soundtrack is 6dB -- it sounds like a huge difference (and it is!), but it's only one bit.
To give mastering engineers a little more credit, yes, remastering is more than just making it louder. A whole lot more than that. But the loudness of a CD has become a quality factor for most people, and that may only change once 24bit becomes mainstream.
Labi said:
I guess it's because of the more advanced technology available nowdays as well as knowledge of the sound engineers and producers.
Top engineers use surprisingly lot old technology. It's the ears and experience that counts, not the available gear. Mostly it's because OUR listening habits have changed but we still want to listen to some great albums from the old times.
Labi said:
they sound much better then the original
They certainly sound _different_ than the original, but is it really better? Or is it only LOUDER?