The bitcoin blockchain is getting more massive evert day. The last time I checked it was appriaching 10GB, which is an unrealistic size. I heard about bitcoin blockchains becoing corrupt during download. The only way to fix it is to delete the corrupted download and start again.

It's OK if you have the latest super fast fiber connection, but on anything else it's going to take ages to download. I heard there is a new wallet called multibit or something that does not need to download the blockchain. It stores it online instead. That should be much faster to syncronize.