Extending the analogy found in
Penises have higher bandwidth than cable modems, it can be shown that my entire
genetic makeup can be stored on a single
CD-RW.
The human genome is about 3,120,000,000 base pairs long ... four possibilities for a {base pair} means it can be fully represented with two bits; 00 = guanine, 01 = cytosine, and so forth.
This means that there are four base pairs per byte, meaning there are 780 megabytes of data. I'm certain that with a refined method for compressing genetic information (perhaps taking into account junk DNA, and especially the 98% of genetic information that we share with every other human), that we can be squeezed into a small optical medium.
However, it should be said that there are far more economical storage methods: after all, two hundred million half-copies of my genetic information are stored in a teaspoon full of milky substance, given the right mechanical stimulation