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The original post: /r/datahoarder by /u/OldManBrodie on 2025-07-22 21:28:16.

I found an old binder of CDs in a box the other day, and among the various relics of the past was an 8-disc set of National Geographic Maps.

Now, stupidly, I thought I could just load up the disc and browse all the files.

Of course not.

The files are all specially encoded and can only be read by the application (which won't install on anything beyond Windows 98, apparently). I came across this guy's site who firgured out that the files are ExeComp Binary @EX File v2, and has several different JFIF files embedded in them, which are maps at different zoom levels.

I spent a few minutes googling around trying to see if there was any way to extract this data, but I've come up short. Anyone run into something like this before?

The original post: /r/datahoarder by /u/budderlovr on 2025-07-22 20:47:41.

Currently I have a Raid 5 MDADM array of 3 16TB hard drives which is almost full, what would be the minimum amount of drives I would need to buy to get everything converted to ZFS?

Can I do something like a 2 drive raid 5, move one drive worth of stuff over, then add the now empty drive to the ZFS raid or make a raid 0 in ZFS, move stuff, add another drive and make it into a Raid 5?

The original post: /r/datahoarder by /u/NailusHunter on 2025-07-22 20:22:42.

I recently got a 18 tb hdd and want to move all my media (Movies , shows , videogames ,comics etc )form two 4 tb external to the new 18tb drive

First time moving that many files (6.9 tb ) , so what should I do ? Do I move all and let my computer on all night or Should I move it in parts , like let say 100 gb and then another 100 gb and so on ?

The original post: /r/datahoarder by /u/sshwifty on 2025-07-22 20:05:50.

https://preview.redd.it/n17kiun2fhef1.jpg?width=3024&format=pjpg&auto=webp&s=379fcd744e996bf68dfc9c880894cb125411a089

I saw these at an estate sale (where I got unopened Bluray disks). Wiki says they ran 1995-2002 and this 2gb was the largest capacity. I only used some ZIP disks before transitioning to CD/DVD and then flash memory.

The original post: /r/datahoarder by /u/Top-Goose9198 on 2025-07-22 20:04:13.

I have around 10tb of amassed video files some of which would be hard to replace. It is spread across various PCs and portable drives. Every few months I back up everything to a 12tb external HDD. When I do this, I delete everything from the back up HDD and then copy the new data. If there an efficient way of only saving changes rather than having to write it all to the disk each time? Probably less than 5% of the data changes between back ups. I don't want to go down the route a nas / raid array as I don't have the time / space / knowledge. Thanks.

The original post: /r/datahoarder by /u/nsomnac on 2025-07-22 18:53:25.

My team has travelled the world performing human subjects research and have curated a collection of cybersecurity data which contains both biometric, activity, and survey data from subjects as they completed a series of cybersecurity challenges. The whole data collection is roughly 4TB. Included in this collection are time sequenced application, keystroke, command, brainwave, heart rate, and galvanic skin response logs. The data is structured by event/subject/challenge/activity/media-type.

I'm looking for a way to archive the raw data (and our analysis) for public consumption. Ideally something cheap to free as we are not funded to pay for data hosting - albeit we are required to make the data publicly available.

Recommendations or suggestions appreciated. I've looked at archive.org, and while i think i can store all the data there... it wouldn't be in any reasonably organized structure for ease of reuse... so not entirely sure if that's the right place to park it.

The original post: /r/datahoarder by /u/Big_Procedure6420 on 2025-07-22 15:20:46.

A YouTuber I'm archiving deleted a video off of YouTube and the only way to access it is through the Spotify mirror. I have searched google for any Spotify video downloaders, but since Spotify downloaders are only known for downloading audios, there doesn't seem to be any. If anyone knows a way, please reach out to me in the comments. Thank you!

The original post: /r/datahoarder by /u/manzurfahim on 2025-07-22 14:24:17.

The original post: /r/datahoarder by /u/iamhigherleveling on 2025-07-22 14:01:23.

The original post: /r/datahoarder by /u/mrsilver76 on 2025-07-22 13:47:11.

I’ve been working on a small command-line tool (Windows, macOS, Linux) that helps organise large photo/video dumps - especially from old drives, backups, or camera exports. It might be useful if you’ve got thousands of unstructured photos and videos spread all over multiple locations and many years.

You point it at one or more folders, and it sorts the media into albums (i.e. new folders) based on when and where the items were taken. It reads timestamps from EXIF (falling back to file creation/modification time) and clusters items that were taken close together in time (and, if available, GPS) into a single “event”. So instead of a giant pile of files, you end up with folders like “4 Apr 2025 - 7 Apr 2025” containing all the photos and videos from that long weekend.

You can optionally download and feed it a free GeoNames database file to resolve GPS coordinates to real place names. This means that your album is now named “Paris, Le Marais and Versailles” – which is a lot more useful.

It’s still early days, so things might be a bit rough around the edges, but I’ve already used it successfully to take 10+ years of scattered media from multiple phones, cameras and even WhatsApp exports and put them into rather more logically named albums.

If you’re interested, https://github.com/mrsilver76/groupmachine

Licence is GNU GPL v2.

Feedback welcome.

The original post: /r/datahoarder by /u/friolator on 2025-07-22 12:32:23.

Just curious what folks are doing for this. We have stacks of dead drives (probably close to 50 at this point) that have just been set aside in a box over the years. In most cases they are drives that were in RAID 5 or RAID 6 Arrays that failed, but some are not - old system drives, and could contain some sensitive data.

The drives from RAIDs are probably fine since the rest of the RAID isn't there to reconstitute the data (and on those, there was never anything sensitive). But the individual drives from workstations are the ones I'm more concerned about

My uncle used to work in IT for a bank. They had a drill press and would drill 2-3 holes in each drive then fill it with gorilla glue, he said. Seems effective, and cathartic, but probably overkill for our purposes.

What's a good way to more or less wipe anything left on the platters on a drive that won't even mount (so zeroing them out won't work), before we send these off for recycling? What about SSDs?

The original post: /r/datahoarder by /u/Neurrone on 2025-07-22 04:19:56.