cryptonit
what is DMD bootstrap and what difference from Full Blockchain?
Basically, Bootstrap.dat allows you to import a portion of the blockchain incredibly quickly by bypassing the peer downloading requirement. It's essentially identical to someone posting their copy of the blockchain for you to download. When all the blocks are "bootstrapped" in, your client continues downloading blocks (newer than those in the bootstrap file) from peers as it normally would.
For a slightly more in-depth explanation, here's
the Litecoin wiki page for Bootstrap.dat.
thx for explaination feldenthorne
basical some people want no presynced chain but a bootstrap.dat because that behave same as sync with network
so every block from the bootstrap.dat run through all wallet checks
if u want full savety use the bootstrap.dat and u will sync in like 1 day instead of 3 days from zero
if u want speed use the presynced chain and u will be sync in below 1 hour