return nil, err
		}

		var mhdr bigarMemberHeader
		if err := binary.Read(sr, binary.BigEndian, &mhdr); err != nil {
			return nil, err
		}

		member := new(Member)
		arch.Members = append(arch.Members, member)

		size, err := parseDecimalBytes(mhdr.Arsize[:])
		if err != nil {
			return nil, fmt.Errorf("error parsing size in member header(%q); %v", mhdr, err)
		}
		member.Size = uint64(size)