When talking about long-term preservation it is necessary to distinguish the preservation of the data structure ("bitstream") and the readability of the file format.
- Bitstream preservation: is guaranteed for LORY by Zenodo. For each file two seperate copies are hosted on two seperate servers. Furthermore the ZHB is in the process of evaluating an in-house solution.
- File formats: Binding standards are missing so far. It is particularly important to avoid copy protection and proprietary formats in order to enable file conversions.
- Metadata / data curation: The ZHB ensures that metadata are standardised, explicit and of high quality.