The restoration of Dust of Angels (1992) began last March. The good condition of the original negative made the restoration much easier.
The duration of the negative is 110 minutes, five minutes longer than the theatrical release. After comparison, the restoration team found that the plot and editing of the release are faster and tighter. They believed that these outtakes are coherent with their respective shots and do not affect the plot, so they decided to keep the five minutes after discussion.
For sound, there is a slight discrepancy in the picture and sound in a part of the dubbing. The restorers thought it was caused by the quality of soundtrack and fixed it, but they later found the original DAT with the help of sound designer Tu Duu-Chih and realised it was not synchronised even back then. Since they wanted to restore the film to the original, they used the DAT directly and kept the discrepancy.
Watch now! Trailer of 4K restored Dust of Angels:
https://youtu.be/MYcUO-Ljxqc
Further reading (in Chinese):
〈所以，什麼是「原來的樣子？」──《少年吔，安啦！》電影修復的要與不要〉
https://www.biosmonthly.com/article/11075
