uppsss
I deleted my own post by mistake.
The article is at
http://www.Geocities.com/Shailat2000
Now I will answer your question.
There are different opinions on this.
The first question you have to ask yourself is "Does the track even need compression at all?.
Some will claim why hurt tracks and leave youself less options for mixdown ?.
A compressed track can not be uncompressed after (although an expander can help undo some of the damage).
Some use it during tracking in order to get hotter signals to the multitrack.
Many engineers will use compression during tracking depending on the situation.
Is the singer an untrained screamer ?
Does the Bass player control his playing and does it sound solid?
Etc..etc...
When these engineers use compression it will mostly be a light compression
just to control the dynamics a bit, with a Threshold that makes sure the compressor is not working constantly but rather a bit here and there.
Recording to Analog with out compression and then needing it despratly during a mixdown can lead to a problem of more tape noise on the track during mixdown.
Pumping and Breathing can become more apparent.
Don't be fooled into the cliche of "A compressor will ruin your tracks as it kills dynamics - depth - life - and all human beings".
If used improperly all that
can happen (or if a junk compressor is used).
The Truth (as heard on 60 min.) is that it is one of the major tools in keeping some of your track alive-understood-in the pocket.