Rip CD to Mac - basic question


I have started to rip some of my CDs to disk using a mac. I notice a lot of people using software to do this. When I look at a CD in the finder it appears as a set of aiff files for each song, for which I have been doing a drag and drop onto my hard drive, just like copying any other file. I would rather not use iTunes.

My question is: is this a bit for bit perfect copy? If so, why use other software? If not, why not? Computer files are always bit perfect when copied. There must be some software intervention on the part of the OS anyway, as a CD doesn't contain aiff files.

Any help would be appreciated. I don't want to copy a lot of CDs like this and then find I have to do it call over again.
malcolm02
So, I installed XLD at the weekend (thanks to those who suggested it) and experimented with ripping a CD to different formats (aiff, wav, flac, alac). I like the way it gives a log for the rip, that in my case showed no errors. I also like the way you can do a check on an already ripped file, which showed that the files I dragged and dropped also have no errors (though with an offset that I don't quite understand).

I would wager that these are all exactly the same, bit for bit, so it comes down to which format is most convenient and future proof. The lossless compression on a couple of them (flac, alac) is a nice disk space saver, and flac is most platform neutral, though not supported by iTunes.

However, to be frank, I'll be damned if I can hear any difference between the several file formats and the 2 apps I'm using (Amarra and Decibel) in my system, which I think is fairly decent (Mac -> Halide DAC HD -> Theta Casablanca -> Sunfire amp -> Von Schweikert VR-33 speakers).
I clearly hear differences regularly with many things including power and analog ICs in my system, but with digital, the only clear noticeable difference I hear is when I change DACs. I'm sure there are measurable differences between digital sources and cables in terms of jitter, etc. but I do not hear anything different of any concern in practice. So I am convinced the magnitude of differences with modern digital gear these days is much less significant and off secondary concern versus the more traditional things that audiophiles fret about once analog comes into play in the playback chain.
Mapman - have you tried the DAC direct to amps?

What is your source? Maybe too much jitter to hear these things....

Steve N.
Empirical Audio