Topic: MicroSDHC cards work in Sony PCM-D50 using a MS-Pro HG DUO adapter @ 24/48

[eeast]

After some experimentation, I found the following steps allowed use of the MicroSDHC cards in a Sony PCM-D50

• Load MicroSDHC card (using adapter) into PCM-D50 and select the "Memory Stick" as the memory source.
• Attempt to format the "Memory Stick" with PCM-D50.  Make sure NOT to format the "Built-In" memory.  It will attempt to format the MicroSDHC card but will fail.
• Format Micro SDHC card in a PC, 32bit FAT using normal format, NOT Quick Format.
• Copy all of the files/folders from the "Built-In" memory to the MicroSDHC card using a PC.
• Now, select "Memory Stick" as the memory source. The unit will display "Unknown Format."  That is okay,
  because it will still read and write from the MicroSDHC card.  Press the Play or stop button and the MicroSDHC card in MS Duo's clothing is ready to go.

I have used both a 4GB and 8GB class 6, as well as 16GB and 32GB class 10 microSDHC card to record continuously for the entire card capacity at 24bit 48KHz. The unit seamlessly splits the files after 2GB.  The unit recognizes the entire available memory for each card correctly.

For recordings at 24bits 48KHz:
capacity	recording time
32GB	30h 51 min
16GB	15h 25 min
8GB	7h 45 min
4GB	3h 52 min

It stands to reason that higher capacity cards may also be compatible, given adequate speed.
After reviewing the Memory Stick® Media Compatibility Information for Sony® Digital Voice Recorders,
it appears that 16GB and 32GB memory are also be compatible.

32GB card: Patriot Signature 32 GB Class 10 MicroSDHC Flash Memory Card PSF32GMCSDHC10,
$49.99 shipped, as of 2012.01.12
http://www.amazon.com/gp/product/B004H8FTCU/ref=oh_o00_s00_i00_details

16GB card: Patriot Signature 16 GB Class 10 MicroSDHC Flash Memory Card (PSF16GMCSDHC10),
$19.99 shipped, as of 2012.01.12
http://www.amazon.com/gp/product/B004H8FTCK/ref=oh_o00_s00_i01_details


8GB card: A-DATA Turbo Series 8GB Micro SDHC Memory Card with SD Adapter, Class 6,
$27 shipped, as of 2008.11.24
http://www.meritline.com/adata-8gb-microsdhc-card-class4.html

4GB card: PQI 4GB Micro SD High Capacity (Micro SDHC) Memory Card w/ SD Card Adapter, Class 6, Model AEAS-4030R01FJ
$9.25 shipped, as of 2008.11.24
http://www.meritline.com/pqi-4gb-micro-sdhc-memory-card-class6-2.html

Micro SD Adapter Set (SD, mini SD, Memory Stick Pro Duo) - $10.75 shipped, as of 2008.11.24
http://www.amazon.com/Micro-SD-Adapter-Memory-Stick/dp/B00196PQX0



Other considerations I have after using the recorder include some suggestions for ways to alleviate stress on the input connectors.

There are right-angle connectors for both analog and optical inputs/outputs.

Neutrik NTP3RC and NTP3RC-B 3.5mm Audio Plug, $14.09 shipped, as of 2008.11.24
http://www.markertek.com/Connectors-Adapters/Audio-Connectors/3-5-2-5mm-Mini-Connectors/Neutrik-USA-Inc/NTP3RC.xhtml?NTP3RC-B

Velocity™ Right Angle Adapter - Toslink to Mini Plug, $12.53 shipped, as of 2008.11.24
http://www.cablestogo.com/product.asp?cat_id=2001&sku=40017

[morst]

Brilliant Thanks for the post. I think it makes sense, I'm gonna help a buddy through it and see if we can make it work.