Download Cap?

Hello, I've been trying to download Metroid Prime Trilogy in a WBFS file format, I have 6.7GB of the 7.3GB needed for the file, but no matter what I do, the download fails and I cannot continue past the 6.7GBs, also it's painfully slow to get to that point (60-90kb/s?) I know it's a free download, but jeez its starting to get annoying. Should I go elsewhere or is there a way past this cap? Also, I'm NOT getting nkit.