Error downloading folder through web client

Yeah, as I think about it... Downloading many files or 1gb shouldn't be a technical limit. You can zip files as a stream and have it download at the same time. You don't know the final size upfront but it is doable. The problem is that you need double the disk space on the other end to open. 10gb zipped file would require 10gb more to extract to. Not ideal for. 120gb drive.

Try google drive, I think they have the download folder problem solved.

i have a feeling Dropbox hasn't put much thought about accessing files this way or that zipping that many files together will take an extremely long time or is very resource intensive. Storage cost is predictable but cpu cost is less predictable when you have to zip files or transcode video etc

have you considers buying a 1tb drive for your Mac and expanding your 120gb? I know it costs you but that's something in your power that you can do rather than hoping Dropbox will do something in the future.

I had the same issue as you, as my SSD is 128GB. I got an external 1TB for $75 (Touro from Amazon). The rare deletion of files is overstated. If it happens, Dropbox has a recents link where you can restore the deleted files. As long as your external is plugged in its fine. If you plan to remove the external, make sure you exit out of Dropbox first. Install the external before you start Dropbox. For your Mac, just make sure Dropbox doesn't start automatically upon startup.