Many Questions regarding the pros and cons of D.J'ing with a PC have been covered in the D.J'ing using a PC section of the forum
I'm in the process of moving my entire CD collection over the Laptop since it now takes me around 20 - 30 minutes to find ONE tricky request out of around 7 full boxes of compilations!. True, I automatically know where the popular, party and current chart stuff is, but try and find something that I know I have, but haven't played for 5 years!.
I looked into this in great detail before I made the change over myself, since I would usually be the last person to recommend dumping D.J gear for PC Equipment, think about it!, i'm attempting to dis-suade you from buying a CD Player in favour of a PC or Laptop - that advice must be genuine

since i'm losing custom by doing so!.
Of course your PC is flawed when it plays back MP3's - how many other items of software do you have running?, is it connected to the net?, and possibly full of temporary internet files and 100's of old registry enteries containing Junk. The trick to reliable MP3 playback is to have a dedicated PC or Laptop, with a fresh install of Windows and no other software running on it other than the D.J Software - and certainly no internet connection. I trusted in the advice given by fellow D.J's who had been using Laptop or PC based systems for many years, and had all managed to run without problems. Spindoctor, Eskie and ADS Entertainments are three such D.J's who post on a regular basis and who give a

to this method!. So far my experience has been 100% positive.