If you want to avoid any downloading problems, WinHIIP should be your go-to- suite. It is a PC application which is used to boost the process of installation PS2 CD/DVD images on a hard disk drive for use by HDLoader or one of its many derivatives including the Toxic OS produced for the DMS4 Pro chip by Team Toxic.
The only requisite for speeding up the process of installing images is that the hard drive has to be physically connected to the computer. The connection method and windows configuration contribute to the speed , it can be as slow as 1Mb/s using USB1, 12Mb/s using USB2 and up to 40Mb/s using IDE. The installation takes only a couple of minutes.
This software is strongly recommended as it presents itself as a great download manager and accelerator.