This is the reason behind getting 500 errors in older observations (older than a month), as links in archive.org for audio files fail to be resolved. This problem will be solved as soon as archive.org is back online.
We are also looking on improving the user experience for SatNOGS network users, so in similar situation in the future no 500 errors show up.
I’m new here so first I’d like to thank all of you for the tremendous work you’re doing!
I revive this old topic because I experience the exact same problem.
I was looking for old audio files I had listed some time ago, and it seems most of them are not available. For example, files for observation 749919 are not on the archive.org site, or at least the link from the DB is broken. Same for 764404n 592104, etc.
Do the files still exist or have the been deleted altogether?
@jbolmont as @mfalkvidd said we are in a migration data state (I’ve updated the status on the linked thread). If the observations had audio file then you will be able to find it but for now you need to search manually in thesearchive.org entries. In each entry there are 10 zips with 1000 audio files each of them. You can check the contents of each zip and download only the audio files you want from it. If you need more assistance let us know.