I'm trying to add my first submission to the database out of the 1500+ discs I own, but I can't add the files to my post, as the website just tells me "File has never been downloaded", and it does that with every file I try to upload.

Philippines-based collector and archivist from Québec
[img]https://vgcollect.com/sig/leonefamily.jpg[/img]
[img]https://card.psnprofiles.com/2/FamilleLeone.png[/img]

That should be correct.  If you see Existing attachment #1 on the left, it has been uploaded and attached to your post.  "File has never been downloaded" just means exactly that - you haven't published the post, so no one else (usually moderators) have had a chance to download the logs for processing and adding your submission.  The size limit for attachments is 2 or 3 MB.

Be aware there's a 2MB(?) limit on file uploads, if it exceeds that it won't upload.
In those cases you'll either need to create split zips or upload to an external host (mega.nz, google drive, archive.org etc)

Digital Archivist / VTuber / Purple Cat
☆ ☆ ☆ PX-W4012TA ☆ PX-716A ☆ GGC-H20L ☆ BW-16D1HT ☆ ☆ ☆
Wii ☆ Wii U ☆ PSP 3K ☆ SOHD-167T ☆ Pioneer 209DBK ☆ TS-H352C

You can re-compress zip files to 7z which can sometimes result in file sizes being reduced below the 2000000 byte limit (~1.90MB) per file.

BW-16D1HT | PX-W4824TU | PX-W5224A | PX-760A | PX-712A | Plextor Premium | Pioneer 209DBK | TS-H352C | TS-H353A | Wii

A simple windows batch script that will recompress .zip to .7z (depending on where 7-zip was installed, you may need to edit the paths):

@echo off
for %%F in (*.zip,*.rar) do ( "C:\Program Files\7-Zip\7z.exe" x -y -o"%%F_tmp" "%%F" * & pushd %%F_tmp & "C:\Program Files\7-Zip\7z.exe" a -y -r -t7z -mx9 -md1024m -mfb256 ..\"%%~nF".7z * & popd & rmdir /s /q "%%F_tmp" )

Or the following, which will automatically split the 7-zip into 2000000-byte chunks that can be directly attached to the post:

@echo off
for %%F in (*.zip,*.rar) do ( "C:\Program Files\7-Zip\7z.exe" x -y -o"%%F_tmp" "%%F" * & pushd %%F_tmp & "C:\Program Files\7-Zip\7z.exe" a -y -r -t7z -mx9 -md1024m -mfb256 -v2000000b ..\"%%~nF".7z * & popd & rmdir /s /q "%%F_tmp" )
BW-16D1HT | PX-W4824TU | PX-W5224A | PX-760A | PX-712A | Plextor Premium | Pioneer 209DBK | TS-H352C | TS-H353A | Wii

Thanks guys, I've posted my first verification now.

Philippines-based collector and archivist from Québec
[img]https://vgcollect.com/sig/leonefamily.jpg[/img]
[img]https://card.psnprofiles.com/2/FamilleLeone.png[/img]