Discovery Navigation Pro Limits...

[ajmoir36]

Usb hard drive only gets as far as end C folder?

ie.

A
B
C

in the root and then albums underneath maybe limited to 1000 folders?

It just states no playable files in folder (say D) and displays it as empty.

Anyone got any similar issues with any of the mk7 systems? using USB hard disks. Have plugged it into the advanced tele prep usb port in the arm rest.

Same disk worked fine on the MDI on the mk6 all files and folders accessible. It is Fat32 already.

[fredgroves]

Does it actually support hard drives? I know some devices you have USB storage on don't support actual disks...

Also, there probably are limits on the number of entries in the root directory, but in each sub folder there should be a limit of something like 64,000 entries, so an alphabetic root followed by the content beneath these should be ok.... as long as it supports disks...

Have you tried the same with a USB stick instead?

I've only tried SD cards, an ipod and bluetooth audio.

[ajmoir36]

Not tried a USB stick, I don't have one big enough to stick the first few folders. It should support up to 2TB of data so a 500Gb should be ok, the mk6 did with no problems at all. I am sort of assuming its the same as SD cards but I could be wrong. Might try NTFS to see if that has any luck with a smaller disk as a test bed.

The manual has this:

Data media	Requirements for playing in the unit
	Audio files	Video files

Audio CDs (up to 80 minutes). Standard DVD video and DVD-compatible DVD audio. CD-ROM, CD-R and CD-RW audio data CDs up to max. 700 MB (megabytes) with the file systems ISO 9660 Level 1 or 2, Joliet or UDF 1.02, 1.5, 2.01 DVD+/-R/RW up to 4.7 GB and dual-layer DVDs up to 8.5 GB using Joliet file system (only single-session); UDF.

– Digital audio specification. – Format: MP3 files (.mp3) with bit rates of between 32 and 320 kbit/s or with variable bit rate. – Format: WMA files (.wma) up to 10 mono/stereo without copy protection. – Format: AAC files (.m4a, .m4b, .mp4, .aac). – Format: OGG Vorbis.

– Bit rates up to 2,000 kbit/s. – Maximum resolution 720 x 576 pixels. – Format: MPEG-1 and -2 (.mpg, .mpeg). – Format: ISO-MPEG4; DivX 3, 4 and 5 Xvid (.avi). – Format: ISO-MPEG4 H.264 (.mp4, .m4v, .mov). – Format: Windows Media Video 10 (.wmv, .asf).

SD and MMC memory cards with the file systems FAT12, FAT16, FAT32 or VFAT up to max. 2 GB (gigabytes), SDHC memory cards up to max. 32 GB  and SDXC memory cards up to max. 2 TB (terabytes) with the file systems exFAT  and NTFS.

– Playlists in the formats M3U, PLS, ASX and WPL. – Playlists no larger than 20 kB and containing no more than 1,000 entries. – File name and path information not longer than 256 characters. – A maximum of 1,000 files per medium and directory on DVD. – Maximum of 4,000 files and maximum of 1,000 files per directory on memory cards. – A maximum of 3,000 files in the jukebox (SSD).

Audio file playback via Bluetooth®

– The external media player must support the A2DP Bluetooth® profile  → Connecting external audio source via Bluetooth®

USB or MEDIA-IN

– External data medium connected to USB or MEDIA-IN  → External data medium connected to USB or MEDIA-IN           .