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Cause
There is a maximum number of tracks which can be
recorded, regardless of recording time. More than 254 tracks
cannot be recorded on an MD.
Repeating erasure and recording on the same MD creates
many blank portions sparsely on the MD. When recording
on such an MD, a track is recorded on these blank portions
sparsely. If a track is divided and recorded into so many
portions, “DISC FULL” appears.
If a divided portion of less than 8 seconds is made while a
track is recorded on the MD, that track cannot be joined to
another track using the JOIN function. Furthermore, if that
track is erased, the remaining time of the MD may not
increase exactly by the erased amount.
If a track has been divided into many portions while being
recorded on the MD, sounds will drop out while fast
forwarding or reversing such an MD.
You cannot record on a blank portion of less than 12 seconds
(SP mode) on the MD. For this reason, the actual recording
time of discs may become shorter.
SCMS (Serial Copy Management System)
The MD recorder integrated to this unit uses the Serial Copy Management System which allows only first-generation digital
copies to be made of premastered software (like CDs or prerecorded MDs).
HCMS (High-speed Copy Management System)
Now onto recordable MDs (minidiscs), you can record (copy) sound at a recording speed exceeding the normal speed. This fact
requires some restrictions for protecting copyrights.
On this unit, you cannot re-record, at either high speed or normal speed, a song (track) that has been recorded once from a CD
at high speed, until 74 minutes elapse after the first recording of the song started.
For example, after having recorded the first song (track) of a CD at high speed, you cannot record it again, at either high speed
or normal speed, until 74 minutes elapse after the first recording of that song started.
Symptoms
“DISC FULL” appears, even though there is still enough
remaining time on an MD.
“DISC FULL” appears, even though the number of tracks
and recording time do not reach the limit.
• The JOIN function sometimes does not work.
• The remaining time on the MD does not increase even
when tracks are erased.
The sound drops out during fast forward or fast reverse.
The amount of recorded time on the MD added to the
amount of remaining time is shorter than the MD’s total
possible recording time.
MD limitations
The MD records data in an original format that differs from that of conventional cassette tapes or DATs. Since there are
some limitations with this recording format, the following types of symptoms may occur. These symptoms are not
malfunctions.
1st Generation 2nd Generation
CD-R/RWCD
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EN59-64_UX-J55MD[UB]f.p65 7/1/03, 4:43 PM61