$ sudo ddrescue -n /dev/sdj sdj.sdcard.img sdj_ddrescue.log 
GNU ddrescue 1.23
Press Ctrl-C to interrupt
     ipos:    5853 MB, non-trimmed:    20480 B,  current rate:  24248 kB/s
     ipos:    5858 MB, non-trimmed:   438272 B,  current rate:       0 B/s
     opos:    5858 MB, non-scraped:        0 B,  average rate:   4153 kB/s
non-tried:    1507 kB,  bad-sector:        0 B,    error rate:       0 B/s
  rescued:   15929 MB,   bad areas:        0,        run time:  1h  3m 54s
pct rescued:   99.98%, read errors:       14,  remaining time:      1m 46s
                              time since last successful read:          0s
Copying non-tried blocks... Pass 2 (backwards)^C
  Interrupted by user

$ sudo ddrescue -r 1 /dev/sdj sdj.sdcard.img sdj_ddrescue.log 
[sudo] Passwort für Iarsin: 
GNU ddrescue 1.23
Press Ctrl-C to interrupt
Initial status (read from mapfile)
rescued: 15929 MB, tried: 438272 B, bad-sector: 0 B, bad areas: 0

Current status
     ipos:    5858 MB, non-trimmed:        0 B,  current rate:       0 B/s
     opos:    5858 MB, non-scraped:   611328 B,  average rate:      78 B/s
non-tried:        0 B,  bad-sector:    97280 B,    error rate:       0 B/s
  rescued:   15930 MB,   bad areas:       42,        run time:  4h 23m  3s
pct rescued:   99.99%, read errors:      202,  remaining time:         n/a
                              time since last successful read:  3h 41m 29s
Scraping failed blocks... (forwards)^C        
  Interrupted by user

$ sudo ddrescue /dev/sdj sdj.sdcard.img sdj_ddrescue.log 
[sudo] Passwort für Iarsin: 
GNU ddrescue 1.23
Press Ctrl-C to interrupt
Initial status (read from mapfile)
rescued: 15930 MB, tried: 708608 B, bad-sector: 97280 B, bad areas: 42

Current status
     ipos:    5874 MB, non-trimmed:        0 B,  current rate:       0 B/s
     opos:    5874 MB, non-scraped:    95232 B,  average rate:       0 B/s
non-tried:        0 B,  bad-sector:   613376 B,    error rate:       6 B/s
  rescued:   15930 MB,   bad areas:       28,        run time: 22h 12m 15s
pct rescued:   99.99%, read errors:     1008,  remaining time:         n/a
                              time since last successful read:         n/a
Scraping failed blocks... (forwards)