I could only download the last two, Cybele_SACD_030802_DSD_Surround_11.dsf (11.dsf) and Cybele_SACD_AB001_DSD_Surround_05.dsf (05.dsf), as the first file is offline.
The first track, 11.dsf, plays OK on a Pi2, although the CPU is quite high, 40-50% on three cores with a fourth core at 90%.
The second track, 05.dsf, plays poorly on the Pi2 and the CPU load is even higher - hitting 100% on one core with the other three cores about 40-50%
It looks like this is a CPU issue, so perhaps not surprising these files don't play well on a Pi1 - if you run top or bcmstat.sh you should see that your CPU load is 100%.
I've got other DFF/DSD files where the CPU load is generally lower, 20-25% across each of the four cores, however these are stereo (not surround) and consequently lower bitrates, which may explain why they play without a problem:
Code:
11:24:22 9766.041016 T:1798825024 INFO: ffmpeg[6B37E440]: Input #0, iff, from 'smb://NM-WIN7/Torrent/qTorrent/Samples/DSD/GouldInterplayDSD64.dff':
11:24:22 9766.041016 T:1798825024 INFO: ffmpeg[6B37E440]: Metadata:
11:24:22 9766.041016 T:1798825024 INFO: ffmpeg[6B37E440]: comment : Saracon 01.60-00 (Weiss Engineering).
11:24:22 9766.041016 T:1798825024 INFO: ffmpeg[6B37E440]: Duration: 00:04:15.80, bitrate: 5644 kb/s
11:24:22 9766.041992 T:1798825024 INFO: ffmpeg[6B37E440]: Stream #0:0: Audio: dsd_msbf (DSD / 0x20445344), 352800 Hz, stereo, fltp, 5644 kb/s
11:24:22 9766.041992 T:1798825024 INFO: ffmpeg[6B37E440]: Metadata:
11:24:22 9766.041992 T:1798825024 INFO: ffmpeg[6B37E440]: absolute_start_time: 00h:00m:00s:0
11:24:22 9766.041992 T:1798825024 INFO: ffmpeg[6B37E440]: comment_time : 2013-06-26 19:06
It may be the case that DSD files (with any number of channels) require too much CPU to play well on a Pi1, and that surround-sound DSD files may also be too much for a Pi2.
