TroubleshootingReference
Maximum recordable number of photo files (Approx.)
The following limitations apply for the number of photo files that can be recorded to your “WALKMAN.”
Maximum recordable number of photo files
Max. 20,000 files
Max. 1,000 files/folder
Recordable number of photos may be less depending on file sizes.
Maximum number of photo files that can be thrown via DLNA
Max. 1,000 files
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