Differences

This shows you the differences between two versions of the page.

--- himdmusictransferformac [2009/04/10 22:28] – wikiadmin
+++ himdmusictransferformac [2009/06/29 14:38] (current) – wikiadmin
@@ Line 15: / Line 15: @@
 The code does not use the system supplied USB mass storage driver to access the HiMD device, but uses an internal implementation of the FAT file system. Interestingly, while some SCSI commands are standard, the read(12) and write(12) commands are replaced by the vendor-specific commands C0 (let's call it magic read) and C1 (magic write) for data access. It has not yet been tested whether standard read and magic read return the same data for the same sector.
+===== Screenshot =====
+{{:himdmusictransfer.png?500}}
 ===== Restrictions =====
@@ Line 51: / Line 56: @@
   - Decode idv3-Tag from MP3 and create track-info and write to disk
   - Once the application is closed, mount the disk in MacOS again (Icon reappars on desktop)
+==== Download of a PCM/ATRAC3/+ to a MiniDisc (MZ-RH1 only) ====
+  - Unmount the MiniDisc within MacOSX (the Disk-icon of the MiniDisc vanishes from desktop)
+  - Convert input WAV-file to PCM used on HiMD (byte-swap etc)
+  - Download track onto disk with probably 16kByte blocks
+  - Prompt user to reload medium or disconnect/reconnect Walkman so that the Walkman calculates and writes MAC for new tracks
+  - Once the application is closed, mount the disk in MacOS again (Icon reappars on desktop)
+=== Proof for calculation of MAC by Walkman ===
+Output of //himdtest// before and after medium reload:
+before:
+<code>
+minimac2:MacOS zedv$ ./himdtest /Volumes/NO\ NAME/ tracks verbose
+: 3:57 LPCM Unknown artist:Outkast - Hey Ya (Unknown album 0)
+@03428 .. 254@05992
+     Key: 0000000000000000; MAC: 0000000000000000
+</code>
+after:
+<code>
+minimac2:MacOS zedv$ ./himdtest /Volumes/NO\ NAME/ tracks verbose
+: 3:57 LPCM Unknown artist:Outkast - Hey Ya (Unknown album 0)
+@03428 .. 254@05992
+     Key: 0000000000000000; MAC: 178a45ac2d1978c8
+</code>
 ===== Links =====