Hi, Can someone explain what happens here? If I store files on my nand flash, suddenly I see following output printed out (see below). This causes a lot of delay when writing files. What's happening, and can this be avoided? ... store: /nand/music.mp3 GC Selected block 20 with 8 free, prioritised:0 yaffs: GC erasedBlocks 8 aggressive 1 Collecting block 20, in use 56, shrink 0, Collecting page 0, 563 4 2048 Allocated block 21, seq 4125, 7 left Collecting page 2, 573 1 2048 Collecting page 3, 573 2 2048 Collecting page 4, 573 3 2048 Collecting page 5, 573 4 2048 Collecting page 6, 573 5 556 Collecting page 7, 573 0 0 Collecting page 9, 583 1 2048 Collecting page 10, 583 2 2048 Collecting page 11, 583 3 2048 Collecting page 12, 583 4 2048 Collecting page 13, 583 5 556 Collecting page 14, 583 0 0 Collecting page 16, 258 1 2048 Collecting page 17, 258 2 2048 Collecting page 18, 258 3 2048 Collecting page 19, 258 4 2048 Collecting page 20, 258 5 2048 Collecting page 21, 258 6 209 Collecting page 22, 258 0 0 Collecting page 24, 524 1 2048 Collecting page 25, 524 2 2048 Collecting page 26, 524 3 2048 Collecting page 27, 524 4 2048 Collecting page 28, 524 5 2048 Collecting page 29, 524 6 2048 Collecting page 30, 524 7 2048 Collecting page 31, 524 8 554 Collecting page 32, 524 0 0 Collecting page 34, 534 1 2048 Collecting page 35, 534 2 2048 Collecting page 36, 534 3 2048 Collecting page 37, 534 4 2048 Collecting page 38, 534 5 167 Collecting page 39, 534 0 0 Collecting page 41, 544 1 2048 Collecting page 42, 544 2 2048 Collecting page 43, 544 3 2048 Collecting page 44, 544 4 1693 Collecting page 45, 544 0 0 Collecting page 47, 554 1 2048 Collecting page 48, 554 2 2048 Collecting page 49, 554 3 2048 Collecting page 50, 554 4 2048 Collecting page 51, 554 5 2048 Collecting page 52, 554 6 2048 Collecting page 53, 554 7 2048 Collecting page 54, 554 8 1337 Collecting page 55, 554 0 0 Collecting page 57, 564 1 2048 Collecting page 58, 564 2 2048 Collecting page 59, 564 3 2048 Collecting page 60, 564 4 2048 Collecting page 61, 564 5 1473 Collecting page 62, 564 0 0 Collecting page 63, 574 0 0 yaffs_BlockBecameDirty block 20 state 8 Erased block 20 ... Kind regards, Stijn.