Question Posted 05/21/13:
I am attempting to download all Study Data from ADNI@LONI.

In the Download Study Data page, I have clicked on ALL and checked both "Select ALL tabular data (csv format)" and "Select ALL documents and zip files [30.0 GB]". Downloading starts after clicking on "Donwload>>".

After more than a day of downloading, I get a "download.zip" file that wheighs 30 GB. I am unable to unzip this file without errors on a Linux (Ubuntu 12.04) machine. The data unzipped from the 30 GB "download.zip" wheighs only 7GB. It looks like the genotype results are lost in the process.

Do you have any clue that could help us? Has this issue ever been reported?

$ ls -lh download.zip
-rw-rw-r-- 1 dp165978 dp165978 31G mai 18 14:51 download.zip
$
$ unzip download.zip
Archive: download.zip
warning [download.zip]: 30064771072 extra bytes at beginning or within zipfile
(attempting to process anyway)
file #1: bad zipfile offset (local header sig): 30064771072
(attempting to re-compensate)
inflating: CONVERSIONS_DICT.csv
[...]
inflating: adni_gwas_v2_set3.zip
file #84: bad zipfile offset (local header sig): 1624369043
(attempting to re-compensate)
file #84: bad zipfile offset (local header sig): 1624369043
[...]
file #99: bad zipfile offset (lseek): 33929445376
inflating: ADNIGO2_GWAS_Set_9.zip
[...]
inflating: PTDEMOG.csv
$
$ rm -f download.zip
$
$ du -sh .
7,1G .
$