I want to know the answer to the following question:
What two algorithms have compression ratios of up to 1200-fold?
All the background I'm provided with is that "HAPZIPPER was tailored for HapMap data and achieves over 20-fold compression (95% reduction in file size), providing 2- to 4-fold better compression and in much faster time than the leading general-purpose compression utilities.". Is that enough to answer the question?