Any update on this? I should probably clarify the motivation of switching to ZIPs:
1) Indexing: Tars are not indexed and thus a big archive needs to be extracted completely, even if you only want one file out of it.
2) Filename and paths are very restricted in their length, so my backups are always missing some files.
ZIP64 support would eliminate both of these issues. In other software, ZIP64 support is very common, for example Windows supports the format since Vista. Additionally, I think it’s very common for older blogs and online magazines to have more than 4 GB of media files in their CMS, which of course needs to be backed up.
