You could try this one, although my wallet is actually a few GB bigger:

http://147.135.10.45/blockchains/current/DigiByte_blockchain.zip

from:

http://cryptochainer.com/dir/

You can also speed up the process by adding some nodes:

http://www.digibyteguide.com/user-guides/speeding-up-sync-for-your-digibyte-core-wallet/