// Find compressed/uncompressed offsets of our partskip
			compOff, uCompOff, err2 := idx.Find(partSkip)

			if err == nil && err2 == nil && compOff > 0 {
				compressedOffset += compOff
				partSkip -= uCompOff
			}
		}
	}

	return compressedOffset, partSkip, firstPartIdx, decryptSkip, seqNum
}

// GetObjectReader is a type that wraps a reader with a lock to