D:\TEST>cd.>123...456...789.mp3
D:\TEST>dir/b
123...456...789.mp3
D:\TEST>ren * *.
D:\TEST>dir/b
123...456...789
D:\TEST>ren * *.
D:\TEST>dir/b
123...456
D:\TEST>ren * *.
D:\TEST>dir/b
123
---
D:\TEST>cd.>"123 456 789.mp3"
D:\TEST>dir/b
123 456 789.mp3
D:\TEST>ren * "* "
D:\TEST>dir/b
123 456
D:\TEST>for %a in (*) do @echo "%a"
"123 456"
D:\TEST>ren * "* "
D:\TEST>dir/b
123
D:\TEST>for %a in (*) do @echo "%a"
"123" |
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